No need, as for me. Stalling is quite a realistic tactic for brawlers.
In fact, the referees tolerance to inactive ground game is up to fight orgs owners IRL. The best decision, imho, would be to give org.owners ability to regulate standup frequency in org fight rules.
Hm... Yes, for guard and half guard it would be nice.
No need.
Maybe, a small increase of successfull takedown attempts % would be nice.
To get - yes, a little.
To brake - no.
Absolutly yes.
But, maybe, increasing an energy loss of failed clinch takedowns would be a good idea too.