If I understand correctly, it’s still not great for repair shops because the parts are expensive enough that you can’t really make any money and because you can only get the parts on demand (i.e. you can’t buy parts to just have on hand). That and the pain in the ass time wasting process you have to go through to pair the serialized parts through an Apple specialist once the repair is done.

This is only really targeting individuals who want to repair their own devices, but even then, it’s priced such that you’re usually better off just having Apple do it themselves.