It was quite unfortunate that the two Bundesliga champion has the worst performance ever which is Borussia Dortmund and Bayern Munich, they both lose to a smaller teams they can easily win, actually I don't know if you observed something on today's match because almost all the big teams here and other leagues has a difficulty wining there matches today.
But however of all the matches they have played today, Bayern Munich match was actually what kept me thinking if Bayern Munich deliberately allow Frankfurt to win them or it was there inability to perform well that made them conceive that much.
I was very surprised by Munich's defeat. It was their first defeat in the League. They dominated the match with more than 65% possession of the ball. But Frankfurt was more because even though they only had 35% possession of the ball, they managed to score 5 goals from 6 shots on target. I don't understand why Munich lost that match.
For Dortmound vs Leipzig I think it's a pretty fair result. This means they played with a score of 2-3, which means there were attacks from both teams. In contrast to Munich who lost with a quite embarrassing score.