Senate has to advise and consent. That doesn't mean you have to vote yes; you can vote no. It's not a rubber stamp. But what these guys are doing is, "Wait a minute, we don't have to vote yes or no, and maybe we can trick our voters into not holding us accountable for not voting yes or no. "
I go to goth clubs dressed as a frat guy so I can stand around and look terribly uncomfortable. At frat parties I do the same thing, but the other way around.