The clipping issue is not surprising given how that occurs on many traditional helms, though the visual effects should be more persistent I will agree.
Looks like the curse of being an early adopter.
i find it quite funny that blizz sells 3 transmog helmets for the price of an expansion and they are still glitchy... you'd think for that price they'd put same effort as into creating expansion ;>
You should notice how this shapes to the form of the head of tauren and troll males.
I think you might need to double check, they might be expecting you to actually pay more for an expansion!
Silly money hungry Blizzard.
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You'll end up looking like a Xenomorph from Alien.
Not really Blizzard's fault you didn't look at the item on your character, or via WoWhead before purchasing it, is it?