The 3.2 dungeons are easier for 2 main reasons (from what I see).

1) Gear, dungeon requirement i180 gear of folks doing the dungeon i210(At least for my DF groups), compare that to 3.1 release.
2) No more big pulls. There seem to only be a couple places to get more than one group so much less dmg going out with only a group at time.

oh and a 3rd. Maybe i've been lucky, but it seems the first week, tanks I ran with were actually using cooldowns etc. as folks were getting a feel for things.

I've been able to dps as a healer much more easily as well.