It's more likely that all the "insider info" leakers like Spawn Wave, Vergeben, and that Papa dude etc... is all fake info used to mislead people and spot moles. Which is why so many are so adamant the leak is fake cause it doesn't line up with what they know.
It'd be very easy for Nintendo to spread false leaks, especially if they fed people some real leaks here and there, in order to cause confusion for the final push/catch moles. And honestly, they have plenty of good reason to. It's literally just "tell this guy some easily verifiable info that's not too "big", and feed him a bunch of fake stuff amid the real leaks you fed them." Far less effort than this entire elaborate hoax. Hell, this leak needing to be super elaborate in order to be fake is what verifies it as a real leak. And all the leakers not agreeing with it cause it doesn't coincide with their stuff only proves they had unreliable info to begin with, which is not only likely, but many of them had also admitted in the past.
It's a small sacrifice intentionally leaking the next direct, or that Ridley is in moments before the direct, in order to hide the big stuff like Banjo coming back to Nintendo for Smash. You tell people, what they expect to happen, not what they wish, and the surprise becomes bigger. "Yeah yeah, we're getting a new Pokemon, yeah yeah, temper your expectations."