I also did not expect that Bayern Munich could lose the match even though Bayern Munich did play very well in that match and in general it should be considered unlucky for Bayern Munich. But I think that is not a big problem for Bayern Munich because they can come back with many goals in the next match in the Champions League this season because the next opponent for Bayern Munich in the Champions League is Barcelona. And I still think that Bayern Munich is much stronger than Barcelona even though both teams are coached by new coaches.
So you feel that because Bayern lost their last match is an opportunity for them to score many goals when they are playing with a strong opponent like Barcelona. I think that you are underestimating Flicks and his men who are on fire currently. Did you watch Barcelona last UCL match with many goals and you think that it will easy for Bayern to win Barcelona.
It will be a fierce match because both teams are on three points and that match will determine who moves to 6 points between these two club. Barcelona is in a good form and they are also playing the similar game pattern with Bayern. One disadvantage is the away team will have to play harder in other to win away from home.
I don't think Bayern Munich can get an easy win against Barcelona, and it could even be that Barcelona will get the match because even though they had to lose Ter Stegen who had a long injury but, Barcelona is still the best in La Liga so far, and they have a very productive front line. I don't know who will be the starter between Inaki Pena and Wojciech Szczesny but I'm pretty hopeful that Szczesny will be the one chosen because he has experience and maybe that will be very useful when playing against Munich (and other matches).