Oh, I'm sure it will catch Crappie .... I'm just not sure it will come back out of the "pile" it dives into (unless it's rigged weedless or on a weedless jig).
Lots of people use twin curly tail jig bodies, and this "creature" just has two sets of them (albeit paddletails & not curly tails). And I believe some of our DIY plastics pouring members make similar creature baits.