You can disagree all you want, it is an opinion, neither yours nor mine is correct, that is the beauty of everyone's varying in one way or another.
As far as the scoring system, are you trying to tell me that leg kicks and near submissions arent taken into account? I beg to differ, matter of fact that is all you hear about during fights, how Joe Rogan (if UFC) or Frank Mir and others (if WEC) talk about a fight being skewed in one way or another if the fight is close due to leg kicks or near submissions. Are light leg kicks going to be credited, hell no, but hard landing leg kicks that are not checked most certainly, cautious or sub-cautious are taken into account!
Also near submissions will also skew a judges decision if it is close, much like a late take down. If a fight is very close come the end of a round and you score a take down and not even necessarily do anything while in side mount, the take down at the end can and will get you a W for the round every time, let alone a take down and a near submission.
Near submissions and leg kicks rank right up there with pushing the fight, you may not be throwing many kicks or punches but as long as you are not getting hit, and you push the fight and are constantly trying to cut the octagon off on your opponent, it gets you points in the eyes of a judge.
I do agree that the judges are a work in progress and do not always see things as others may, but your claims are inaccurate, and again I say...... knock them out or tap them and this discussion never even happens.