Bayern Munich has such an impressive game that people like it a lot. Obviously, when there are big teams, the competition becomes more, which will benefit Bayern Munich from playing stronger than before. Bayern Munich could have tried to win these matches, but they failed because they did not prepare themselves in any way. Most of the teams they have lose against were strong, but Bayern Munich stopped improving their performance. It was good that they had won with quite good efforts, although they were still under pressure at that time, but they would have succeeded with defense. They should think of achieving this at any cost, which is their main goal.
For matches Bayern Munich lost in the Bundesliga mostly, I will not say lack of preparations led or contributed to that because even for a friendly game they do prepare before going to play the game so mostly I think it is just that they had an unequal performance against their opponents who found pride in winning the biggest team in German. This season winning the Bundesliga will be expected of Bayern Munich but not with as much pressure with them having to win the champions league.