No, at least not yet
I have a domain with a number of hyphens an it is still no 2 on their serps (this is MSN UK) for the most related search term. No 4 is also a 2 hyphen domain
The domain is not too spammy ,IMO, ie not like buy-this-product-now-or-you-will-die-a-slow-and-horrible-death.com, but more like car-auto-parts.com
I dont know if they could apply a type of sentance restriction?