I'm willing to dismiss a lot of the spell names as purely game mechanics, honestly. They don't seem to match anything we've seen thus far about TES magic. I am however a bit concerned that their pure mage class is so... darkly themed?
That said, the actual abilities themselves don't seem too out of it to me, mostly because I mean... We have a Soul Trap ability already, which is rather considerably more serious than vampiric magic.
It does feel a bit generic, though.