Eagle Forged Stroker Crank CRACKED

Yes, I know its a lightening hole, but it looks really big to me. Its a whole lot larger than the lightening holes in my stock 340 crank. And I will say that the cross section where it is cracked looks really on the thin side. And the crack runs right through the lightening hole. No matter what material it is, it just probably fatigued because of the small cross section. I also noticed the deep scratches left from the drill in the lightening hole, stress risers.