In my opinion, why Bayern Munich hired Kompany as coach was because Bayern Munich wanted to follow the example of Leverkusen who were successful in using young coaches, especially since both Xabi Alonso and Vincent Kompany were Pep Guardiola's students. Of course, this is a strong reason for Bayern Munich in making their decision. Yes, in the end we will all feel sorry for Kane, with a new coach of course it will take time to strengthen the team so it is certain that next season Kane will end the season without another trophy.
While the club and its management have their best reasons to why they did made the decision of bringing in Kompany as a coach, I don't think that was enough wise decision made by the team especially as they look forward to greater opportunities in the next season. I wasn't so pleased with the performance of Kompany as the coach and manager of Burnley as he did not perform to par based on my judgements, so I don't expect any magic from him when he joins the Bayern Munich either since Bayern Munich is a bigger team that's always wanting to join big and tough challenges then Kompany must be ready to do bigger things this time around too.