Hey! what's wrong with the Mexican league
? Lol
It's easily the 2nd or 3rd best league in Latin America... but many things are wrong with it involving corruption, also the format is mediocre, having short tournaments, groups and playoffs allows practically even weak teams to reach the final. Football is a business in Mexico more than a sport.
But that was not he point, the point was that he adapted to the English Premier league rapidly despite coming from a weaker league. I don't think there's a debate there.