it seems you understand UI/UX design principles very well
Just one of those things that you just get, but haven't studied, so may not have the required words for.
I mostly think in terms of usability, convenience and utility from my experience in using GUI software and websites, with no manifest-able artistic inclination.
Looks kinda nice.
There are still quite a few interesting websites I have seen even without it. They are just rare and require someone to put some amount of obsession into it. So either way, I won't expect normal companies to end up with art, even if the tech part of it has been made easier.
I mean, I could develop a site like that without neocities, but I won't be designing one as such. And my site can already take care of a wide variety of page sizes.
Considering that viewers are directly (ok, maybe not so directly) paying them for the content on stuff like Odysee, I'd say, the additional 5 minutes required to log into it and copy-paste the title and description and click on the submit button isn't really much and neither is the ~1 hour they would require to keep the tab open in the background (while doing other stuff themselves) for the upload to finish.
Might just be that they uploaded a few times and say their YouTube views plummeting, because only those people went there and not many new people came in, which made them reconsider.