transing increases the DPS potential of nearly every class by a large percentage, but the demi human reduction gear as well as the HP percentages of trans classes are not scaled with this increase in power
before trans the only way to kill someone in one hit was with asura, and without Zen, 30% more SP, and a better job bonuses, a monk cannot get a quick, deadly asura and still have decent amounts of vit. if you have enough vit to resist stun decently on a plain monk, your asura will be slow and/or weak, this isnt the case with champions
after trans WoE/PvP revolve around one-shot KO mechanics entirely, the only class I can think of off-hand that actually straight up DPSes people is LK (1hq, SG carded blade, ridiculous BB dps), besides that the only way you'll ever die is to Asura, SB, Acid Bomb, or precasted EDP Grimtooth
to put this slightly into perspective, hitting a dude for over 1k in WoE before trans were around was impressive (and if you're hitting for less than 7k in trans woe you might as well not be hitting at all).
basically trans just changed the way the entire game works and a lot of people dont like the way it functions now, it's really hard to explain unless you've actually WoEd without trans but.... everything is just so unsatisfying. you never really work for anything, breaking an emp in a 50vs50 person fight with no EDP, no ice pick, no frenzy, no cursed water or any of that s*** takes an incredibly long time, is very stressful, and is quite rewarding when you finally break the emp/force the other guild out
it actually feels like you did something or really fought a battle, instead of everyone either dying on the first cell or zerg EDPing the emp down in 3 seconds