I've had 4 or 5 of those on my vector. Clipped and sanded and never an issue. This is common with maxxis, alphamax, vector, and spyder models. Not sure why it took them so long to figure it out.
That said I would get it checked out, hoyt replaces splintered limbs under warranty as long as it wasn't obvious abuse. The limbs come in a set, so if the dealer tries to replace only one limb, or says it's not covered under warranty, then find another dealer.