The funniest thing would be them losing the league with Kane on the roster. Obviously it's a very sad thing, but they did manage to lose the super cup on his first game, then they may lose UCL which is not rare, not like they win it every season, and they have won the league for 10-11 times in a row, on his first year at the team, if they do lose, it would be like proof of Kane's curse on the cups as well.
I mean with Bayern, it would be quite near impossible for a team like that not to win the league, and look at Leverkusen go. Hell, they lost to some third division team on the cup, that is not something Bayern does, they may win 12-0 and I would believe that even more. It's really fun to see, but also something sad for him for sure.
Bayern losing the league this season would be horrible for Harry Kane. He left Tottenham in search of trophies so losing it in a club that league trophies are guaranteed would hurt really bad.
Harry Kane is doing his best to win this trophy. He's scoring goals and providing them, but we don't know how his trophies cabinet might turn out to be.
Right now Bayern is second in the league and if they lose any other match they might lose the league because they're not top of the league.
Leverkusen seems to be in good form, even if I don't trust them, but if they don't lose anymore they might remain at the top this season.