Saw this yesterday. My thought is the same as it was then: It'd be nice if people could build stories nowadays without having to resort to multiverse theory in order to handwave away all the plot inconsistencies they made in the past. Because we all know that this is, at best, Nintendo coming up with a nearly-thoughtless blanket statement to address the millions of annoying questions they get over and over again, and then putting support for it in the newest game so it looks a bit more like that was the plan all along.
Also, kind of a weak episode of GT in general, because it's just matpat telling us things that the game itself spells out. The best episodes are the ones where he goes really in-depth and uses different aspects of math, science, and various bits of lore to come up with something unexpected.
(Spoiler:) >inb4someoneyellsatmeforhavingacontrarianopinion