I'm trying to understand why that seems like a likely option, because the idea of feeding him one piece of incorrect info buried in a bunch of other things that, so far, have showed up true, seems like a reach in your scenario. Would you mind clarifying?
I just don't see why this one piece of info would be fake, because it doesn't benefit anyone. If loz works at Nintendo, then he has nothing to gain by planting fake info with real stuff as the detail he has the correct info in will still garner attention (being the K. Rool reveal trailer, which he had pretty much spelt out before the direct). Meanwhile, if his source works at Nintendo and is trying to leak info, they also don't have anything to gain by including false info for the same reason as before, as the details for the correct stuff matters so much more than the percentage of correct information.