I don't believe Scott is making calls on questionable hits, et cetera. He's announcing the matches, putting up the signs over the tables, et cetera.
But, FWIW, pool ain't the World Series. We are a small fractured industry with professional players who compete with the average Joe in tournaments with ranking points. Where can you play baseball in the MLB with the pros? It doesn't happen.
Pool has always had a gambling element. Those who try to dismantle it are fighting a losing battle -- all in my opinion, of course.