It's not BS by any means and there's definitely alot truth in that. You're typical, "can't see behind the stats and not watching any games" guy. That whole circus at Barca, let me break it down for you:
1. Previous signings:
Look at the players, or more specificially attacking players they sold so Messi could play his role as a false 9. They had played like Eto'o who was forced out, Zlatan was there for a year, Henry was there couple seasons and had to play on the left more than as a ST, then those Villa's and Sanchez's before they got Suarez who's like a perfect fit for Messi. So basically they had like 5 different guys on a tryout before they found their guy.
2. Current signings:
Then you take a look at the recent signings after they sold Neymar. Desperately trying to get someone in return in order to keep Messi happy. They signed Dembele, Coutinho and Griezmann with zero clue if they have use for them, but just prob had the pressure to sign somebody so Messi wouldn't lose his mind. It's not necessarily Messi's fault, it's understandable that he demands certain things, but pleasing a guy who's like 31-33yr instead of doing what RM did and told Ronaldo he's free to go, was the right thing. Barca's board is too scared to do such a thing, and Messi demanding(or Messi being there demands, whatever) these things for his short term success instead of looking at the big picture and being part of the complete rebuild isn't something Messi is willing to do, so they need to invest around a 33yr old for next couple years, which is so god damn stupid management in a long run because they need certain type of players, instead of just thinking we're going to play football like this, we need these type of players but no, Messi wants free role and their signings are always making his game better or playing through him. Like, they haven't really invested on the defense at all, it's always attacking players but still not replacing Suarez, because he's Messi's bf.
3. The coach roulette:
Just checked they've had 9 coaches since Guardiola left in 2012 summer and that's ridicilous. The funniest in here is that Gerardo Martino was coach for Barcelona and for Argentina. Coincidence? I don't think so. He actually coached Newell Old Boys which is Messi's boyhood club, then from there he went straight to Barcelona and from Barcelona to Argentina NT coach and people seriously say, Messi has no say who's coach in there, or which players he prefers to sign. It ain't just the rumours it being like that, there's actually alot of things that supports it being more true, than not. There's been speculation about Xavi coming back to home, but im sure he won't come before that circus is over in there and that includes Messi and the old boys being gone, so he can actually focus on coaching.
4. Board:
How their management is supposed to do well, when they're so scared of Messi leaving while Messi giving all these demands or players/coaches he would prefer to have? They can't even make their own decisions, Messi is currently bigger than the club and they're shitting on their pants alongside of losing it and it's not just Barcelona who is scared, it's La Liga as well.
Final conclusion:
Once all this stops, there's going to be an anarchy in Barcelona and that's their club for +5 years and you all know it's going to happen. Pique cares more about making Catalonia independent or becoming the next President of Barcelona. Suarez and Messi will just agree eachothers for whatever. Bartomeu and co. can't walk on the streets of Barcelona for a while. Their fans will split up, Messi is retired nobody gives a fuck about Futbol Club Barcelona for a while. SO, i don't care how many goals or assists he has per season from now on, he is responsible as much as anybody, just by being who he is, just by not willing to see the big picture and wants to sacrifice whole club for his last years of hurray in order to have some individual success. If it wasn't like i said, he would have accepted a limited role, different role instead of that free role still at 33 and he would have accepted club attempting even some sort of rebuild while he's still playing. That would have been caring about the club but he clearly does not, that's why he sticks around with his demands till the death. How how many different athletes you've seen sticking around and sucking the playing time from the potential future stars? It has happened on so many sports, so many times and it never ended nothing but a total split between the team and player. You can take a look at RM for example, Ronaldo asked more money but RM said not going to happen, which was obviously smart in their part even they might have lost some money, but it allowed them to rebuild better which Barca can't obviously do as long as Messi is in there. Now you're saying "oh well but he still assists every game and scores 40 goals a season", but that's not the point, the point is that whole team needs to be surrounded around him and the more you prolong it, the bigger will be the causes in the future. He isn't 25, he isn't the future anymore and as long as you care about more about his stats which are obviously carried big time due his limited movement on the pitch, the longer it takes to recover from this whole mess. He is still best player in their club, but nowhere near a guy you should build around. He shouldn't even be playing 90mins a match if he can't run more than 5km per game, he's max 30-60min a game guy nowdays, yet you build around him and trying to make him being able to be part of game by playing so god damn slow.