Shark

Manufacturing defect.  That looks like they didn't get a good coat of resin in that area.  No way a plastic tire tool should scratch through a rim. 

I would push the issue with them.

I have Reynolds.  I landed hard off a drop on a rock and busted the sidewall out.  All I had to do was send them the wheel.  They replaced a new rim and shipped it back at no cost.

Crush it Seth!