Well, to answer your question "What about" that

either
A) You subscribe to the theory that the FAA does indeed regulate model flight activity and does indeed impose airspace restrictions on models, AC on model flight decscription, does indeed issue waivers to restritctions to modelers that apply, has already had model flight waiver revokations (911 & corona area)

or

B) The FAA doesnt regulate models so there is no applicable regulation, AC, NOTAM, waiver, or any other imposition or infringement on wild azz random anywhere anytime model flying by the FAA.

I am leaning toward A.
If you pizzoff the FAA with a model, you will feel the current sting of the FAA on your model flying.

p103 doesnt make us register & inspect Ultralights, yet does clearly have regulations as to when, where, & how much weight they can fly. That is the FAA regulating the ultralights, yet saying it is a self regulated industry. Self regulated, as long as you are within the FAA regulations, like the weight & fuel FAA regulated caps