So like... I played RNG and THF, who cares about a COR...
1. I haven't played 75+(The new content) because it's fail and everyone wants to Level Sync at low levels. Anyways... You're not critting something your lvl pulling that hard where Provoke won't aggro, what are you doing a WHM 2 hour lol.
2. I played both THF and RNG with /NIN they die the same on pulls with Utsusemi and the Eva isn't that great for a THF either over RNG. Seriously you being level 60 getting hit by a level 62+ isn't a good idea with w/e EVA. If you were a good puller you would pull far enough so that the mob didn't hit you at all, Utsusemi was just enough for the tank to get aggro when you got to camp, or just incase stuff happens on the way. :P
3. Using a throwing weapon as a THF was pretty fail dude... I used Acid Bolts and Such on my cross bow FTW(Peeps like the status down effects :P) because I was pro... You used Bombs to pull on RNG, have you even played the two classes? Not trying to be mean, but reading what you just said kinda makes me think you have no idea how a RNG and or THF even works at pulling. Reason being of why RNG is better, because the fact RNG main Weapon is ranged compared to a TNF Daggers, or did you use a sword and shield? Anyway since that is the case a RNG would save TP to do fast skill atk's to pull mobs in high camped areas like Crawlers Nest for example. I know this because on My RNG we were all good at exp chains on camps, and not so good on my THF when people were like 'Are you going to pull?' and I was like 'I would but the RNG took it'

. Saying man RNG is a better puller, really no argument there.