This incoherent outburst almost certainly owes more to electioneering than any actual concern about the Spanish language. This quote is particularly funny: 'he declared that "teachers have to respect the rules of the Spanish language because children have to master the language as it is."', coming, as it does, from a city government that has been all about disrespecting the rules of the Spanish language in pushing at every opportunity its porteño / rioplatense regional dialect.
It only illustrates the folly of leaving educational policy to local government rather than specifying a national curriculum for schools.