Pekora doesn't own the trademark on big braids on bunnygirls, dudes. She doesn't look like Peko at all past the fact she's a bunny and has big braids.
Technically there's also the fluffy scarf around her neck, and the rabbit familiars that have a passing resemblance to nousagi_(usada_pekora) in terms of extreme roundness.
I think the claims of the devs/artist doing it on purpose is pretty far-fetched, but there are parts of the designs that do remind you of her.