Oh please, the hype for Hamilton was so ridiculous that if the producers or record company submitted it as such, the ushers could've gotten a nomination.
As far as I know the Grammys don't refuse individual parts of a submission, unless they won for it previously, so it's the producers or record company that submits the names. So with that I am actually really annoyed about Kinky Boots getting a nomination. Aside from the principal soloists, every one else nominated for already won the Grammy in 2014. The pickings were that slim?
"Hey little girls, look at all the men in shiny shirts and no wives!" - Jackie Hoffman, Xanadu, 19 Feb 2008