I have mixed feelings about this.
NYRA continuing to put the good of the sport ahead of short term revenue is commendable.
On the flip side, these CAW guys are obviously very smart and have worked their asses off trying to get an edge. Assuming a few of them actually have one and are earning steady profits, the rug is being pulled out because they are too good. That's not exactly the same as casinos barring card counters (which was greed motivated and didn't impact the other players), but it sort of sucks the same if you are the guy getting barred after all that work.
Personally, I think all jackpot and carryover bets are a bad idea for the public in general. But people like them and others that used to have an edge before the CAW players came along would whine if they were totally eliminated. The latter group just wants the even superior competitors out of the game.