No offense to anyone who likes this, but it's utterly ridiculous. For one, there's nothing I can think of that would so cleanly remove the flesh from the front of a skull while simultaneously leaving the eyes intact. Moreover, without facial muscles, the jaw would hang limp and speech would be utterly impossible.
Not only that, but a steamroller wouldn't have the desired effect on Logan. After all, adamantium cannot crush. Thus, what you'd get would be severe flesh trauma from compression, but beyond that little real damage. It would be very painful, and possibly incapacitating temporarily, but nothing even classic Wolverine's limited healing factor couldn't handle. You could not squish him flat, either the floor / ground would give or the steamroller would ride up and over Logan.
That also doesn't explain why, instead of trying to crawl away, he didn't roll to his side. It's rather like how cartoon characters run from boulders instead of dodging to the side... it's amusing, but not very smart.
So, while I may like seeing Wolvergod knocked down a peg or two myself, that doesn't justify bad writing.