In 2013, Bayern Munchen absolutely humiliated barcelona in their own stadium. Comming from a 4-1 in germany.
Van buyten is a crappy defender, prone to mistakes. Boateng is better, but not that good either. Both played the entire game in spain. But 12/13 bayern was the best team of the past decade, with an impossibly good organisation.
Current bayern is significantly less good, like every current team. But offensively they remain top3 in europe, and their gameplan is to completely domminate the opponent. So yeah, Coman should do well, he's surrounded by players who carry the team.
Having that said, its time some people get over it and let go, untill guardiola is gone, and we can appreciate our german counterpart again.