Mike, seriously. You won the game. The points Curry mentioned applied. They were sitting ducks (well, not Ducks anymore, are they?!

) and your team won.
Why are we discussing this then? From your POV this story should be going like this:
"Ha, .41 tried to pull off some sketchy stuff today but as they were hogging up to many valuable assets in a rather bad spot (bad as in trapped/cornered) we could still win the round by out capping and rendering their position in the bunker useless! I have huge balls!"
But instead you whine/wine/vine/fine around here.
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For that T-shape example:
Two persons, knowing about each others positions, staring at each others doors, WAITING... Why not have someone else put a nade in the enemys' window and THEN storm in?
He, who waits long enough for his teammate to arrive and successfully drop the nade, shall be praised! Not being talked down to as a camper or sth.
Regarding the relation between movement and camping in PR: This is what the game is actually all about for me personally.
You want to be on the move constantly - on a squad level base!
You want to be stationary/accurate as often as possible - on an individual level!
The game pretty much goes on between these two extremes and finding the right balance, in the correct moment, is what makes this game so great imo! OC all the cool stuff, explosions and shiz might help a bit!
EDIT: just read Flaps response:
Again, impossible: let's just agree on "very hard", okay!? Given, sometimes it really is especially hard, almost silly, due to engine limitations and such but I have yet to see such a spot.
BUT also again, in most of these cases, those enemies aren't really a problem. As mentioned, simply cap them out and guard their exits (with way lower number of men!) afterwards. One of the PR loading screens says "when you can see the enemy, the enemy also can see you" and apart from thermals+smoke this is a) correct and b) goes for the both of them.
I can imagine a case like: the whole! team is sitting in the bunker guarding their exits pretty well etc. When does that ever happen?! Never seen. And even if. You have access to ammo, respawns, the timer to run out, etc. They don't.
OC this would be the most boring game ever...no question about that!