The defense condition of the Bayern Munich team is indeed not good because after I traced all the players who strengthened Bayern Munich this season, it turned out that there were seven players who were injured and five of them were in the center and right back positions. While the other two are in the wing and attacking midfielder positions so that this could certainly be very beneficial for Barcelona besides the match that will be played is also at Barcelona's home ground. However, Barcelona should not be happy about this because in the Champions League, even the slightest mistake can have fatal consequences for the team as a whole.
Sometimes teams have a bad luck because if one defender is injured, you can replace them with a bench player, but usually other defenders have to work more to cover the difference, which makes them injured too and it keeps rolling more and more. This is what happened to Bayern and we are still going to see them get mostly wins because group stages is nothing for them, they are too good for group stages.
We may have seen them lose to Villa, which was a shock, but not going to mean much considering how they are going to end up with a win and another and another and eventually be out of the group stages. They are candidates for first eight as well, maybe not looking great with Villa loss, but I bet they have a chance to finish within first eight as well. There aren't 8 teams better than Bayern in UCL right now, so if they fail to be there, this would mean they didn't do as good as they should, and this would result with them not having a good result at all.