One can check all the rulebooks for basically any sanction, and they will state you must maintain the same skill level A, B, C throughout each sanction and district. I'm saying here, some 5 or 6 year old kid or even 8 or 9 year old, who makes it there once and maybe only gets mid pack, perhaps his parents decide the best thing is to have him actually attend school and do some interscholastic sport like soccer. So the same kid gets a job and buys his own bike later on, but due to those rules in books he has to go straight to B class, when maybe he hasn't even ridden in a couple of years? It might be completely uncommon but it's a scenario that I am sure as happened at least once.
That is where there is fault with it. But like any rule and policy in any subject there is a way to bypass that in one way or another.
I am completely against the removal of the C class, but for as many times as the zombie horse rises there can always be extra stipulations made to prevent the extreme portion of sangbagging that goes on.
I am the first to say I sangbagged a few years ago, even though I never actually won, but I have lead races just to fade off near the end. Even as recently as the last race was I playfully hassled for still being there from a few people I used to race. I continue to race C class even though I know I probably shouldn't, because I love to actually race against a decent gate. Weighing both sides, if something is done about the sandbaggers, there would be less people. It could be a bad thing at first, but in the end it could only encourage others to try racing. I know for a fact of a few people who refuse to race because they don't stand a chance winning (everyone wants a trophy), and because 'everybody is a goon who can't hold their line and they are afraid to get hurt by those goons,' like myself these last few times out...
The RPV system can be improved and changed to fit the design of the CRA system I am sure. Not likely it will happen, would be nice, but doesn't matter, and shouldn't matter because the point is to have fun, which is something even I have forgotten on occasion. That is why there are so many classes, so everybody can get a trophy and feel proud for themselves.