What sort of open tournaments are you referring to? From my understanding most TKD tournaments don't allow that.
Personally my style is a direct counter to what you've described. I (and my main teachers) bridge the gap, enter, throw hook/smashes, and then slip out of the throw to escape while they're trying to get a grip. Then when they attempt to come in again, I throw a cross-counter or hook counter, then back up and try to stay in punching range. Basically all our groundwork is from training with bjj purple belts and up, trying to escape rather than staying on the ground with them. That's not part of the plan, but if I mess up and end up on the ground I need to know what to do. And once I escape, I can go back to my game-plan.
I'm not really sure what your post has to do with my comment about low kicks/prevention kicks, but from my experience my style seems to counter perfectly what you're describing.