Seriously?

If you asked someone to build a three page "We're Hiring" site and got this, you'd "probably tell them no thanks and stop returning their emails". Why?

Their main .biz site looks fine to my eyes too, like thousands of other business websites settled on functional and simple - I'm sure all of this was built closely to spec. What am I missing here?

You still have to pay even if the end result is not what you envisioned. You pay a contractor for service, it's not a product purchase. Act professionally and he'll certainly try to make up for it. Being a douche doesn't help anyone.

The work may not be good but if you commission someone to create something for you under the pretence of providing payment for their time and services (any amount of money) and then decide you didn't like the work they produced, they'd still want payment (partial or full). Otherwise it's just similar to spec work