Bro Bayern Munich is definitely much stronger than Vfl Bochum and Augsburg. And Bayern Munich win against Koln is more likely. But even so, I would say that Bayern Munich's players must play carefully in this match. You might not know that Bayern Munich drew 1-1 in their last home match against Koln. Despite Bayern Munich being very strong, Koln managed to share the points. And so I'd say if Bayern Munich don't play carefully or make any mistake against Koln, Munich has a chance of losing points.
Koln often make it difficult for their opponents who are much stronger and sometimes, even though in reality they are a relegated team at the moment, that doesn't make their mentality go down. Bayern Munich really has to be careful against Koln and I agree with you, if Bayern Munich is careless they will lose full points. But the result will be different if Bayern Munich scores lots of goals in the first half and it is certain that they will continue to increase their number of goals in the second half. This all has to be directed well, especially now that Bayern Munich has a world class striker, namely Harry Kane, so I think this will be a fairly easy job.
Yes, basically the statistics have shown that they are one of the teams that are slumped in the relegation zone, that's clear but as you said that they have a different mentality from other weak teams, even though they are weak but there are some things they have which of course it will be very surprising, we can reflect on the previous few matches that Koln could get a draw against Bayern Munich, and with that, it does not rule out the possibility that the results could happen again in this match.
So from yes I hope this can be a concern for Tuchel as a coach, I hope he takes some precautions to minimize such risks, and also clearly besides Bayern Munich need to be very careful, they also have to continue to fight to be superior in that match, not to waste any opportunity. If possible they should be able to create a few goals in the first half and strengthen the defense in the second half or add more goals until the minutes end. The point is Bayern Munich must be able to strengthen their game on various sides, do not let there be the slightest gap because of course the feared thing can really happen. And also yes for the front lines, maybe now Bayern Munich already has Kane with his sharpness that is no longer in doubt, I hope he can perform optimally.