i understand that, i just disagree.
if we want to award points for positional dominance, then scoring a position should get you those points. if not, then let's not score them at all. it's silly that the rules basically state you get points for side control, but only if you start from their guard. you get points for getting on top, but only if you start from your guard. why? we're not rewarding positional dominance, and it doesn't really make sense.
if going for a submission loses you the position, then you're doing it wrong. that's like the fundamental rule of good grappling, to maintain good positioning when going for the finish. besides, i really don't think that people would just hold on for dear life in dominant positions, not any more than they do now anyway.
So armbars from the mount, triangles from the top, even backtakes are a bad idea because you can end up on the bottom at the end of an escape or scramble.
As I always saw it, BJJ doesn't reward positional dominance as you say it. It's all about going towards a submission.
You sweep, you get points because you're closer to a finish, you pass the guard, more points, you get mount or back control, shit loads of points
Getting on top is not the real value (only 2 points), you're not getting a sub just for getting on top. For BJJ, solely being on top in a guard as no value. And it's pretty much that, you're nowhere near getting a sub.
Then there's all the unscorable actions, like leg entanglements, front headlock against turtle, sub attempts form the guard...
But I understand where you come from, you would want BJJ to be a more realistic combat sport, more geared towards the general fighting principle of never giving up top position. And it's real, you never should give up top position in MMA or a street fight.
But BJJ and sub grappling has become a speciality sport, with it's style and ruleset that show off the principle of getting a submission in a non striking fight. Also, the only grappling sport with an emphasis on the guard and working from your back. For sure, it's not supposed to be a great fighting option, to work from your back, but it's still a really useful skill and if you're not decent in it you can't really win an MMA fight.
I understand that the general public or the other fighting arts can find it weird or not up to their standards. But a lot of people like it the way it is. Personnaly, I find it way more entertaining to have options from top and bottom, there's way more action for the viewer and the practionner