When has Disney ever trashed the prequels? Kind of odd, as prequel characters are quite prevalent in the theme parks. Jar Jar being the exception.
Let’s not pretend there weren’t a number of cast and crew involved in TFA championing it as a “return to form”, Simon Pegg being Simon Pegg, and the huge marketing push endlessly touting all the practical effects in the film. They didn’t come out and say “the prequels were crap and this is better”, but in a lot of instances they may as well have.