The ATC systems required would be prohibitive, rest in peace any birds that fly into\through the beam, maintenance of the towers, and emitter tracking would all be huge problems.
Also, where/how is all that electricity getting generated/transmitted to the emitter, and what complications does that introduce? What about environmental conditions? How does that effect the efficiency? Does a storm front blowing through suddenly make regular ICE planes a better idea again?
Oh, yeah, don't forget the security aspect. Those emitters are more than 'interesting' enough to be weaponized in the wrong hands.
I mean, beamed power sounds cool and all, but you actually have to take into account a heck of a lot of variables first.
