I think even if Bayern Munich fails in the Champions League and is eliminated by Lazio, then they will realize that there is no one to blame anymore considering that they couldn't fix it from the start. However, even if Bayern Munich qualify, it won't change anything other than saving them from embarrassment in the higher rounds and previous expectations which placed Bayern Munich as one of the finalist teams in this season's Champions League will have disappeared.
Correct, in the end Bayern Munich won't become a champion, but it's really embarrassing if they gets eliminated by Lazio, I'm sure Tuchel would be fired a day after they lose. 
Mark my words, the champion in this season are either Manchester City, Real Madrid or Inter Milan, the rest don't have any chance. I think this time should be Real Madrid, even Girona was overtake them, but they can regain back their position and stand strongers.