To be honest, no, because I know very well what I am talking about. People just like to repeat all the lazy clichés they read in the press and hear from mediocre (if not downright inane) pundits. Having a high possession % does not make any team on the planet extremely similar to Barcelona, or even somewhat similar. Barcelona has players with highly particular characteristics and plays its possession game quite differently to any other team, and especially from Bayern. The passing of Barcelona is usually much shorter, more precise, and into and around far more crowded areas. It is also far more fluid and technically proficient. It goes through the middle much more often than Bayern's, who seem to knock it off to Ribery/Robben/Lahm/Alaba all the time on the flanks. Bayern have several weapons that Barcelona do not possess, like long-range shooting, height and physicality, scoring from set-pieces, scrappy Muller efforts, and scoring with headers. One only has to look at how they beat the English teams (Man City, Arsenal, United) Long-range efforts, headers, scrappy goals. Their workrate is also significantly higher than Barcelona's ever was. Bayern rely far more on traditional athletic traits, like height, strength, stamina and pace than Barcelona ever remotely did. Two seriously different animals for anyone who cares to notice.
If a team has high possession % + Pep on the dugout, definitely sounds very much like Barcelona, but not in this instance. I invite you to re-watch 3 games from Bayern's CL campaign of this season, preferably those against good teams, and also any 3 games of Barca (again against strong opposition) from the past 5 years or so. You will see what I am referring to.