The fact that Bayern Munich failed to score a goal against PSG when PSG was 2 men down shouldn't make you deny the fact that Bayern Munich was better than Real Madrid against PSG. If you watched the Bayern Munich and PSG game, you would know that Bayern Munich dominated PSG and made PSG look like a weak team. The only crime Bayern Munich committed in that game was not making use of their chances, and they allowed PSG to beat them. Since this season, I believe no club has ever dominated PSG the way Bayern Munich did, so I think yudi09 is correct when he says Bayern Munich was better than Real Madrid against PSG.
Yes, in terms of performance in that match, Munich did show a better game than what Madrid showed when facing PSG. Besides dominating and putting enough pressure on PSG players, Munich actually had several chances, but their finishing was not good enough. Very different from what Madrid showed. They only had a few chances, even in terms of ball possession, they were far from PSG. In terms of performance, Munich performed better than Madrid when facing PSG.