Alright, here's some fun facts:
My opinion has reasoning behind it.
Yours is simply "They are lazy as fuck and that is that" without any actual backing to it.
Which is more reasonable? You can act like i'm "up EAxis' ass" all you want, but the fact is that my opinion, that they're intended very blatantly to be inefficient creatures, has reasoning behind it, and yours is just pulled from your whiny ass.
I've already listed reasons. Read it again. It is lazy because they're
identical to ordinary sims with a few minor, most superficial amendments. That is why they are lazy. Fucktard. Other people have said it too; read.