Yoshi said he was ok with powerleveling
How many times are people going to stupidly reply with this argument, like him saying he's "ok with powerleveling" means he's "ok with people powerleveling to 50 in a day?"

Powerleveling has an extremely wide array of possible meanings. What XIV has is about the most extreme version of it you could possibly have, so just going by chance, it's likely he didn't mean that.