Yeah, I think a lot of those books get a bit more flak than is deserved. The names are a large part of the culprit - the idea itself of having a diverse range of monsters within a monster entry is not a bad one. But while this led to some very creative monsters in terms of mechanics, the creativity often didn't carry through to naming the critters.
It wasn't always completely awful, but the worst ones certainly stood out, and provided lots of fodder for mockery.
Whether the naming was done for IP reasons or because the designers thought melded names had a touch more distinction, it did end up reaching somewhat silly levels, and often distracting from areas where the creature design and background was, itself, reasonably interesting.
Would there have been less complaints if the Fire Archon Emberguard, Fire Archon Blazesteel, and Fire Archon Ash Disciple were instead simply named the Fire Archon Templar, Fire Archon Trooper, and Fire Archon Magus?
I'm hoping some of the creativity in design will carry over in the new edition, while also stepping away from the less impressive areas, such as creature naming.