You bring up a fair point! That option is supposed to allow you to dodge the consequences of a mixed success; but at that point, it's almost like you didn't roll the move at all. Thank you so much for the feedback; I think I'll change that option to something more interesting in the next update!
Absolutely! Just as a suggestion, maybe even change the wording a little? Something to the effect of “you don't give the enemy a chance to counter” or “deal less damage, but avoid an enemy trap”. Heck maybe even “deal no damage but gain Momentum”.