The "PBS spacetime" channel exists, so they're doing something right.
If it was properly funded? Quite possibly. If it had the same funding as Youtube's ad revenue then I think you'd have all those, but maybe a lot less of PewPewDie and Dude Perfect.
which channel is simone? the name is too generic, a search only turns up uninteresting stuff.
Pretty good chance they meant Simone Giertz, who is fantastic: