I totally agree that these are not soloable, but I've been doing these as a group (actually a duo) and can (generally) take blue heroics. The rest of the mobs in this quest are 25-26 (even the named guy), so the 29 seems a bit out of place.
Also, from a feedback standpoint, if a small group needs to be 29-30 to finish a lvl 25 quest for a lvl 20 peice of armor (that will be obsolete at 30), then maybe things need to be looked at again.
Now, haveing said that, I don't think they should be too easy, I just want to make sure the dificulty of the quest is where it was designed to be.