I think the problem is that people were expecting an auto-win button so that they could show off their e-peen by running around slaughtering everything and getting uber loot.
Why is there a need for PvE skills? Because some professions are ineffective in PvE because of PvP skill balances, the inability to add things without breaking the class in PvP, etc. Rangers, Warriors, Monks, Necros, and Eles should not be expecting the skills to be as powerful. They already have plenty of great skills that work in PvE.
Mesmers? No way man. The mesmer skills could probably be more powerful and still be appropriate. By giving the mesmer insane AOE damage, the class would be broken in PvP. Unfortunately, it needed something powerful to give it a jolt, and a special skill that doesn't affect game balance was what it needed.
Ritualists? Yeah, laying down a ton of spirits only to realize that the mob took 15 seconds to kill and you are on the next group already was a ton of fun. The new skills make this job a bit easier, which is good. See, a skill like summon spirits would be basically pointless in PvP (and by pointless I mean ridiculously powerful). In PvE, however, the potential is limitless. The quick moving on leaves the spirits behind... but this is no longer a problem.
Assassins? Not much to say here. The skill made assassins no longer into a portable corpse for the necros to summon minions from.
Dervish? While not underpowered, the dervish needed a little tweaking. Avatars are powerful for a long time, then useless for a while... this simply made you need not to sit around waiting to get your 120 second recharge done. Avatar of Grenth was *useless* in PvE completely. Now I see people roll it
Good work with the Dervish, for sure.
Paragons? Hahaha. Did you ever want a paragon in your group over any other profession (unless running a searing flame build and thought "They're on Fire" would be nice). Something tells me that your answer then is quite different then your answer now!
So sorry that the skills weren't an instant kill button. Eles already have one, called searing flames. Warriors and monks are two of the most vital professions in PvE. Minion masters are more of an auto-kill button... your minions do all the killing for you. And rangers have several options as well (although admittingly, the ranger PvE skills could be better!). Assassins and Rits were simply made for PvP in mind, Dervishes were good but Avatars could use a tweaking that wouldnt hurt PvP which this accomplished, Paragons went from crap to awesome, and Mesmers... well... are better
Are the changes perfect?
No.
Are they going in the right direction?
You bet!