Y'know, even ignoring insiders...the incident with Loot Crate alone seems to make Banjo-Kazooie seem likely, as if they were informed about them being in Smash and they were trying to garner interest, but were told to delete everything because they jumped the gun. Then, if the Minecraft employees weren't just trying to avoid anymore questions (though Aubrey could've given a straight answer and ignore anyone who continues to pointlessly bother her about it, while Rad did seem to backtrack), it makes it seem as if Microsoft is trying to cover some stuff relating to Smash internally.
If nothing from Microsoft gets in Smash, this is some strange crap.
-plus, if Minecraft is truly being used as leakbait, then that makes B-K or somebody from Microsoft seem very likely, as there's no reason to have it as leakbait unless you're working with the company. Nintendo had Rayman as one of the names Xander Mobus had to announce, and he still made it into the game, just not as playable. This kinda hurts to say because I still want Steve with B-K but that ain't gonna happen this time around it seems.