Bullshit. I don't care who didn't play for PSG or City, we dominated them all. Both, Verratti and Ibra have played and they've done nothing. Fuck it, we were really good in those games.
That does not mean we will beat Juventus, but it does boost the confidence. Our road to Berlin was the hardest of all clubs in CL and it is well deserved final.
About people hating Barca I guess that happens when the club is on top and especially when it's successful as Barca was/is in last 10 years. But things change and I'm sure we'll fall again sometimes in the future, while Juventus may start shining again (maybe this is the beginning) and start attracting glory hunters, BigNamePlayers and a lot of haters. Would that bother me? No, good for them, best of luck! Why hate them, they aint fucking Madrid.