Yes, the problem is with the "performers" and "content providers." It makes sense that the people running things would be more sober and stable (while Yarvin comes across as a bemused and curious bystander and part-time consultant), while the young, charismatic "properties" would be volatile. But that's problem that will have to be solved, and you couldn't know what these people would be like before giving them money and letting them try.
One thing that I don't see remarked upon in the article (I may have missed it) is that if Milo was in email contact with Yarvin, Bannon and the Mercers must know about him as well. So you'd think that Yarvin would be able to put together something political, given his apparently close connection with Thiel as well.