I get your point, and I'm sure that was an area of discussion during the system design. From my perspective, though, it introduces a potential failure point tha

I get your point, and I'm sure that was an area of discussion during the system design. From my perspective, though, it introduces a potential failure point that may not be worthwhile. If you want the lever to not move when the landing gear controller will ignore the command, then you need to lock the lever in place. If that locking mechanism fails during a normal approach, you have an airplane landing with gear up. I'm sure the FMEA (https://en.wikipedia.org/wiki/Failure_mode_and_effects_analysis https://en.wikipedia.org/wiki/Failure_mode_and_effects_analy...) in this case will conclude that it's more likely that the lock will fail closed than that the checklist was ignored and both pilots will not realize that they're trying to lower gear at too high a speed since that requires three faults to occur: ignore checklist, pilot in command attempting gear down at airspeed too high, and copilot not noticing that.