What technique for ring vs street argument? I must be only half awake on this thread : )
Obviously the techs themselves, sometimes albeit with modification, are the one and the same. I think the only point being made, by the likes of Ballen, is that trying to do something in "real life", ie when you have just been attacked yourself can often be harder to apply and that to the extent possible things should be kept simple. Unlike in sparring or the ring you don't normally have the luxury in a SD situation where your techs go wrong, also, you don't have the luxury of using anything that isn't going to stop things quick. You need to be able to transition from one quick take-out to the next in case your first doesn't work or is negated by your assailants or you need to face multiple opponents or your aggressor may be seeking to use another weapon they have on them.
Cue to scene:
There's the gun on the ground and you go for the sprawl and pound or it moves to an upright position and you go for the neck crank but have not immobilised both arms and, oops, assailant sticks that other blade into your guts as you choking him out. Nice.
Sometimes a strike will be on, sometimes the submission will be the option or sometimes it could be both. If you have the strength and manage to obtain control, such as from rear choke, you may want to momentarily use an attacker as a shield or ram against other attackers, and so a choke would be the better solution rather than just striking him to the ground. You just need a toolkit you can use without thinking in the face with whatever is coming at you.