Depends on how it happens, they could get swept but have like 2 games in their grasps and lose it on some shotty officiating.
Thats very different from;
If they get demolished in 4 straight games(a la the 2012 playoff series), then the answer is an obvious NO. Because (as I've said all along) whats the point of win-now moves if you're really just a pretender all along, to me that'd be a crystal clear signal of "OVERPLAYING YOUR HAND".. That'd also signal the Rockets are easily more positioned to try and upset, and IIRC they were projected to win at-least a handfull less games than Utah this season.
You don't do "Win now moves" just to win in the first round, thats just a simple gesture. The idea is to be truly competitive.