Yeah, but at least dryads & Orcus are still recognizable as what they were. That is, they still look largely the same as from prior editions. Dryads are still tree-women, Orcus is still a portly goat-headed bat-winged demon-god-thing of undeath. 4E lamias (lamiae? lamiai?) look absolutely nothing like their prior edition counterparts. Well, except from the waist up, sorta.
Not saying the new one isn't a cool monster -- it is! -- but I'm just curious as to why they called it "lamia" instead of something else.
Whenever something like this comes up ask yourself "Would the anime generation consider it more cool than before?". If yes then you have your answer.
Are you telling me that you can find a use for what is basically an evil centaur-lion, in a world full of centaur things, and you can't find a use for a beetle swarm that eats people and wears their skin?
You and I must be playing different games.
How do you define the "anime generation," exactly? If you mean "people younger than you are" or some variation thereof (and according to your profile, you're not old enough to be complaining about an entire generation of people yet), I can say that this particular member of that generation prefers mythological accuracy over "coolness" anytime. Don't get me wrong, a beetle swarm that eats and impersonates eladrin is a great idea...just don't call it a lamia.
Erinyes are right where they belong. Under their proper name of "Succubus."