Exact keyword domain names have always helped to some extent but this is something else. Could it be that the balance in weighting between internal anchor and external anchor has been turned way over to external and as a result exact keyword domains, where the domain name has been used in anchor text gets a massive boost?
They can't leave it like this it's just too easy to spam. They will end up going the way of Altavista at this rate.
PS I can't help thinking that a clumsy new Google "engineer" has accidentally knocked the anchor text swingometer way over to the left and no one has noticed because they are all away at Vale getting some late season snow boarding in.