Who's staying in Tottenham Hotspur and expecting to win major trophy? Son is basically essential for the club, he knows his major roles in the club and achieving them wouldn't be a problem for the club. Tottenham Hotspur suits for close competitive race but they're unable to lift trophies till this very moment. Harry Kane made a mistake and that's staying in Tottenham Hotspur for a lengthy period of time and you expects everything to be balance for the Englishman? Although he later realized himself and went straight to making good runs for winning major trophies for himself. Moving to Bayern Munich was extremely one of the best decision he made for his football career, he's in Bayern Munich to win major trophies and he's giving in his best for the club.
Wasted potential, he only make legacy in Tottenham, but he didn't get any worthy trophy and money. If Kane can get Bundesliga's trophy, the curse is Tottenham, not Kane. If I were Son, I would've move to Bayern Munich, Manchester City or Real Madrid. Even he can't survive in these teams, but he can still able to move to other big country instead of dying in Tottenham.
Maybe this season. Last season they failed. The support of teammates is currently better, meaning that under Kompany there are many good players. Last season he was the top scorer, this season it seems that he is also a candidate. With 11 goals, he is currently still the number 1 scorer with Marmoush. In the league they are strong, but in the UCL they still have to improve the team's ability. Maybe 1 league title is enough for this season. If Munich want to compete in the UCL should he take advantage of the winter transfer moment.
Or maybe they will slip again? Leipzig and Frankfurt are currently much stronger.