I am maining a WP/Rad tanker (currently 44) AMA.
But in all seriousness, RttC does definitely require constant attention on who it is currently aggroing. I do find it quite challenging to maintain aggro on mobs of 10+ if I start slacking off. Most of the time I'll soak alpha, do my tank thing, then turn around to taunt the stragglers that want to bum rush my team. Like others have said here it's definitely not the set and forget tanker primary for holding aggro. In some ways I actually enjoy the small minigame of juggling aggro and keeping the squishes safe.
