Are you restricting this to judicial nominations, or the entire obstructionist platform? My understanding was that the rule change only applies to non SCOTUS judicial nominations (of course it’s only a matter of time before that restriction goes away). And if that’s what we’re talking about, we need look no further back than the Bush administration where Democrats blocked republican nominees.
I personally think there should be an up or down vote on the nominees, and don’t really support the filibuster in any situation, but at a minimum this is pretty fucking hypocritical to decry the nuclear option in administration’s past and employ it now.