There are really only two bosses for which I see it not working out: The first (Bonethrasher) and fourth (Fabricator)
Enrage timer on Bonethrasher is tight...you need full composition and decent DPS to bring him down until everyone gets over-geared. I wouldn't joke around with that one for newcomers.
Fabricator...the same. FYI, for the one that mentioned nerfs...his HP is down to 1.8 million down from 2 million pre-nerf. Enrage timer is still a little tight, but I will admit having a sorc healer makes this fight several times easier (we tried it for two weeks without one and it wouldn't work...putting a sorc healer in turned the fight into a much simpler affair).
Find a couple pugs, socialize with the server
All said, Normal EV is not as accurate a frame of reference as you would have hoped, I'm afraid. Despite both offering the same-tier gear, I've found KP to require a good amount more focus than EV.