I don't think so. Other than ghost shrimp, I've only had it in one strain of Caridina but it's whitening of the body that will catch your eye before it gets bad enough to change the shell much. And the shell itself will start flaking off before bending like this. I've hatched out many a fish with a bent spine over the years, I suppose there's no reason an invert couldn't have a similar genetic condition. Did this individual have a normal body "posture" before?
Nothing good happens fast in an ecosystem.