I'm not doubting Kompany, but with his current status and the Bundesliga competition, of course Leverkusen is still above Bayern Munich. The decision to bring Vincent Kompany was considered an option that was not in the initial target because Bayern Munich had received several rejections from big name coaches, as a result choosing Kompany was just a dead end and it happened that Kompany wanted to challenge himself. So don't be surprised if Bayern Munich expectations cannot be met in terms of the quality of Kompany playing style it doesn't look right at Bauern Munich.
The only way to improve Bayern Munich is to give Tuchel another season. However, Bayern has not provided that because they consider Tuchel difficult to control.