There are also IR emitting LEDs. Used as illuminators in many NVGs.
So adding one IR LED to the array would also solve the "problem."
If that's the desired solution, yes, it wouldn't be that hard. IIRC, IR LEDs were one of the first and may have even been before red LEDs. So, it's not a technology problem.
But it remains to be seen what the motivation for change will be. Clearly two different regulatory agencies are aware of the problem, and even at their slow pace you would have thought something would have been done by now.