The unlicensed band doesn't need deconfliction so I don't see why the licensed bands do. When I did some tests for RF compliance I noticed a huge jolt of noise every now and then although it didn't affect my signal. Then I went to the other side of the building and saw someone running the microwave oven.
Even with the microwave relays that connect these towers to the regular comm system.
Antenna design is pretty easy nowadays. You can figure out the energy in the beam and then determine how much amplification you will be allowed. It can mostly be policed by industry.
I spent most of my career designing, analyzing and testing antennas.....you tell me when you can pump a 1 or a 0 out of them all by their digital self and I’ll shut up.
If antenna design is do easy now, why do our weapons systems developments spend so much money on them? Further, pure amplification without consideration of noise figure, N=kTB, and system losses can’t solve that pesky Friis transmission equations.