I think we both agree that Bayern is currently ahead of Barcelona, and in terms of game organization, experience, team cohesion etc.
Everyone wondered how Bayern would play without Lewandowski, but in fact, you can hardly see any difference in their game, they are still a great team, maybe even a better team compared to last season.
I watched their game against Inter and it was a rarely seen dominance from an away team against Inter in Milan.
Barcelona is slowly raising the level of their game with Xavi, but it will take them some time to reach the level of Bayern.
I don't think I can say that it took long for Barcelona to reach the level of Bayern Munich (what does level really mean in the game of football?). The reason is, that the match has not happened and can not measure how far the difference between the two is and how far behind Barcelona from Bayern Munich is. In football, nobody always wins right? Well, this also applies to Bayern Munich when it comes to dealing with Barcelona.