I don't think it had anything to do with the scratches, but do keep an eye on them as they heal. Typically the faster healing attempt shed cycles will happen about 5 or so days after something like a nasty burn. That's because a lot of the skin layers underneath are damaged as well as the topical scales.
Or can happen in softer skin animals like leopard geckos because of vitamin deficiency.
Shed cycles are one of those things that is either clockwork or totally incomprehensible. When they're ready, they're ready.
Glad this one is still eating and doing well from the sounds of it tho!