You're always going to have to have a compromise where (a) there isn't an accepted standard of equipment and (b) where you have a human ref judging a fast situation.
Fencing has enough headaches and that's just with one president (although he is aided largely by electronic equipment in epee) sorting out what happened in a given "phrase" of fencing and who deserved a hit. Anyone seen a top level sabre match with two competitive Europeans repeatedly charging at eachother to get the inititaive will see a comparison with a mugging, I'm sure. That said, I'm always the first to point out in the deliberation if I thought it was me that lost the hit. Most of the @ssholes either yell at the ref for not making the "right" decision, shout and whoop as if they won it or keep quiet hoping the decision might go their way. Guess we can see a parallel there, too.
We'll never have a standard of equipment - people like customising their stuff too much and it would mean some manufacturers would fold. So we have the best compromise we can come to about velocities, no full auto etc. You can limit the grey area, but there'll always be one and people out there who will want to exploit it. What we're seeing with all the rules on DYE tops and the discussion about bouncy beanies is the rules committee looking at an area which although they can't standardise, at least are making attempts to stop exploitation. Face it, if there isn't a ruling that's enforced, then someone is going to turn up with a foam stetson or something that they can refill their hopper from halfway through from all the bouncers . . .
Same thing with the refs - we're all human and make duff calls from time to time, but that's part of the game and you would be extremely unlucky to get a bad call every time you went out (or given the calibre of some of the judging I've seen recently to get anything less than a fair deal). Where you exploit this area, this then becomes complicity on your part and therefore cheating in my books - I don't buy into this mentality of "It's up to the ref to spot it", but that may not be the way that many people see it or think how the game should be played.