World cup is getting closer guys and Bayern had almost all the players into national team or even all of them so it's kinda normal for some players to stay low as we saw what happened with Reus and poor guy, he always had problems with injuries before tournaments. So even if Bayern is not in full power , they have plenty of time to get back on track but World Cup on winter never happened before ...just saying...is a big factor for all big teams who are having national players in their squad.
Yes, this is an unusual season and there is a possibility that we will see some unexpected champions in the European championships - for example Roma or Udinese in Italy 
But I doubt that this is possible in the Bundesliga. No matter how bad Bayern play, all competitors will play even worse and less consistently. In some segments they can show good results, but in general they are untenable.I also think Bayern Munich still have the best chance of winning the title despite their poor form. Because if Munich can return to form, they will win all the matches consistently and occupy the top spot in the table. But I fear, if Union Berlin is able to continue their streak then it won't be easy for Bayern Munich to win the title. Not only is Union Berlin at the top of the points table, but their performance is also excellent right now. They scored 15 goals in 7 matches and conceded only 4 goals. Union Berlin now has the strongest defense in the league. If the defense can keep this strong, Union Berlin will be able to maintain the top spot on the table for a long time.