I coudn't agree with this more. One thing that he didn't point out, that, if you don't follow artistic pool, is that there are clearly two different sets of trick shot competitions. You've got the ones that are like what you see on tv, that's really the "circus" stuff that he is referring to.
The world championship stuff on the other hand consists of 8 groups of shots (trick/fancy, prop/novlety, draw, follow, bank/kick, stroke, jump and masse). Of those only the prop/novelty are "circus-y".
I played in Tom's Artistic cup (a pro-am event) the first 3 years (missed the last two for various reasons) and came in 13th, 5th and 7th. The nice thing about the event is that if you can play pool at a decent level, and dedicate the time to learning the shot program (for the first time around I estimate I spent about 80-120 hours practicing the shots, somewhat less the next two years since they don't change). Granted the field wasn't that deep, it was a nice validation to finish above some more well known trick shot players, and coming in behind people like Massey, Segal, Gray, etc at a pro-am event is nothing to be upset over.
As Abram points out the circus type stuff is just silly. Plus there's no way I could spend so little time practicing it and compete at all. If you can play pool you should be able to, with not too much training learn any "artistic" pool shot. But the crazy stuff, some of it you simply can't do depending on how you are built, and again a lot of those shots are thought up just to have a shot you know your opponent will not be able to do. Plus as Abram mentioned...although a lot of serious pool players consider trick shots a novelty and a waste of time, playing jump, masse's, big draw/follow, stroke shots has certainly had an effect on my game - this stuff does come up and knowing how to properly aim certain rare shots can make a difference here and there, plus some of the things you learn about just how much you can throw balls comes up too.
I like the competition, but unless I was going to quit my job and do this full time there's no way in the world you could ever compete with the people that do that. And it just isn't pool anymore at that point.
Of course the problem, as it often is, is that the more "real" artistic pool events don't lend themselves very well to TV...
I agree that the crazy circus stuff is killing the sport - but then again pool overall is in a decline too. Tom's been really good about throwing money at his Artistic Cup events, but he's had to scale that back over the years - and even though he's throwing what is essentially an "easy money" event, it still hasn't attracted a growing field...field sizes have remained about the same over the years. You'd think that in an event where a large percentage of the field is going to at least make their entry fee back...you'd get more local entrants.