Perhaps you haven't tried them... *in-depth squad review*

I love the Ewoks. I don't see any particular reason for them to get nerfed right now because not enough people use them. Between the hard farm to get them, the fact that it's team synergy that makes them work instead of an OP individual, and the characters themselves not being the most exciting to play it would be stupid to cut them down now. Someday when the Ewok team becomes the new Meta then maybe, but for now this furry little team ought to be safe (I hope :-)