Never used lock in PvP but think you have a good understanding how the supers variants handle IN PvP? Doesn't seem to make much sense to me personally but ok. Radiance can wipe an entire team with ease or at bare minimum split them up for easy pickings, especially in 3v3 game modes from my experience. Trust me when I say this, everyone who is anyone is much more worried about a dude lobbing firebolt after firebolt at you, with armour that makes a titan look flimsy than they are about a self res lock.