There's nothing wrong if somebody says that Atletico is a better club than us, football wise. You should put your financial input aside for a bit. When we're talking who's stronger, we're talking about current season. None of us is a Nostradamus, so saying stuff like 'you'll see where they'll be in 5 years' is just silly, because we're not comparing incomes, marketing or our stadiums.
We lost against Atletico too, so saying such stuff holds its ground. Sure, we might beat them in the next match, but that doesn't imply much either. They are a team that can hardly be beaten by top clubs at the moment, let alone us who can struggle against weakest clubs out there.
We can take on many top clubs, sure. But there are also some clubs who's play we cannot handle and imo such club is Dortmund. We might be individually better but I hardly believe we could beat them outside of group stages.
Actions should take the place of words. Even last year we've been seeing comments how we're super strong, yet we were thrown out of group stages. Before comparing us to other clubs, who were in semi finals or finals over the past couple of years, we should focus on actually getting better -- because there's a whole lot of room for improvement. We should reach 1/4 at least before saying anything hilarious when it comes to strength comparison.