I totally agree that league matches are quite competitive and interesting at times, but the fact that Bayern always win the title at the end is annoying fans because we all want to see some other team win the league title.
Furthermore till Lewandowski is playing for Bayern I don’t think any team will be able to dethrone them, but once he leaves a opportunity will definitely open up, and let’s hope then one of the teams grab the opportunity and wins the league title.
I am quite sure that Bayern would still be the by far biggest favorite for the Bundesliga title and also one of the top candidates to win the Champions League even if Lewandowski would leave the club now. His back up player at the moment is Choupo-Moting who is also a great striker and always performs great when he has a chance to play. Also if Lewandowski would leave the club now, they would buy a proper replacement for him too. Bayern had to play a few games now without Kimmich and Goretzka and they still one and i would say that missing both of the midfield strategists at the same time is more severe than missing 1 striker.