There's no technical reason someone couldn't put together a WordPress-for-Video system - or even add video to Wordpress. (Although that would almost certainly suck for performance reasons.)
The big problem is discovery. A lot of people are wondering about decentralised server networks with an open discovery/search system built on top.
That's a horrendously hard project for social as well as technical reasons. But it's badly needed to drag the web out of the corporate swamp it's currently drowning in.
I’d say the problem is less discovery as it is monetization.
The total bandwidth for one of these creators’ videos is not itself all that massive. Particularly if you are not live streaming, a few thousand dollars in hosting costs a year to get 100TB/mo dedicated servers in a couple datacenters.
But once you have the servers humming and serving a few million views a month, whose ads are you running alongside your content?
Patron is fractions of a percent of the GDP of YouTube’s content creator payout, and patron works for only a fraction of creators. It’s not even a comparison.
I have worked on a video streaming service[1] and I also worked for a company that did sell ad space on their own and with this background I can tell you that I do believe that it should be possible for him to set up his own video distribution site. You are right that he probably does not have the technical expertise to build it himself, but he makes about 1 Million Euro a Year. He probably has enough cash on hand to hire a team that can.
[1] Although a kind of specialized one with a lot simpler scaling characteristics compared to a YouTube replacement.
