All the crowing about Kane being the PL's best product and not even playing in the PL...
Way to acknowledge that while in the PL a player of this quality could be rolled out by a borderline-CL team like Spurs, and was generally in the conversation for best CF rather than necessarily a shoe-in, he moves to the Bundesliga and demonstrates just how much easier it is to score goals there and finds himself immediate uncontested best player in the league.
I'd say that reflects pretty well on the PL's quality and competitiveness.
Firstly, Kane didn't only move to another league; he also joined a much stronger club. Secondly, the other way around happened tons of times; in fact, most of the best PL players in recent years came from other leagues(Salah, for example, never was that great before Liverpool), meanwhile, bar Kane and Bale, I can't remember other "PL manufactured player" shining in other big leagues(you can argue that less great players leave PL to other leagues, but then you shouldn't use this kind of argument, because it would not be verifiable). Also, Kane playing for a bordeline-CL team has nothing to do with how he was regarded in England; United and City tried to sign him, but couldn't because of his stupid contract.
Anyway, Kane being crowned the best player of the world right in the season he left England would be funny(no, it wouldn't prove any point about PL level; it's just funny).