We're facing a really bad pilot shortage right now, even in the fun jobs like flying fighter jets for the Air Force. That change would allow more plains to fly, I doubt it'd hurt the market for pilots - salaries which are already depressed because the airlines have been able to get away with it.

The complaints I have heard from military pilots are that shortages are caused mainly by toxic leadership and unattractive career path options. Combat pilots don't appreciate taking orders from careerists or "shoe clerks". And they don't want to get stuck in staff or management assignments for years just because the service needs a warm body to fill a slot. Plus the day-to-day administrative workload is high even when they're not flying. So, a lot of them in the O-3 to O-5 range just get burnt out and quit. Air Force leadership could fix those retention problems if they actually wanted to, and it wouldn't even be very expensive.

Or a room of remote pilots that are signaled to take control in an emergency?

If a plane gets struck by lightning, the remote connection may cease functioning. So, too, might the onboard computer.

Regardless of what naive optimization might suggest, I doubt the airlines are going to risk the headline "217 Dead In Pilot-less Plane Crash" any time soon.