Well, we know the common perception, from media reports, is that interest is falling because of game length, which is related to high pitch counts and multiple pitching changes.
What I haven't seen are local TV ratings to suggest that. I am assuming that the Commissioner's Office has, because if it weren't true that there is some down side to things the way they currently are, there would be no push to a pitch clock and for these other changes.
I can appreciate AF24 for his opinion. Many many fans of sports are traditionalists, and don't like changes of any kind. There is nothing wrong with that.
From a pure business angle, is doesn't really whether the common fan is an idiot for not appreciating the game, or many other things in this thread. From a business standpoint, the only thing that matters is whether it's true that viewership, especially among youth, is down. If it is, why? and, what can be done to change it? You are not going to change the young people. So, if you are losing them, YOU have to change. And, I think that's what this is really about.