It’s pretty clear that showed him my video about Mario Kart and he references/rebuts the rumors in that video from a year ago several times. This is why he states that characters in other cars do not drive up beside you. And it is why he says he didn’t notice any effects or things moving to make it look like you’re going faster than you really are.
Part of why the review reads strangely on its own is that it’s referencing a video he just watched, and it’s a part two of a longer review that sets up a few things about his views and his visit.
EDIT: His review aims to answer specific questions from the author of the article he is commenting on. Here are the questions he was asked the day before he attended the preview. That explains a lot actually.
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