What happens if they fly into a building because they don't have the button? It's a management of risks.
Besides, there can be a back-link and information updates for the landing box to manage situations with two or more planes in emergency mode.
Besides, there can be a back-link and information updates for the landing box to manage situations with two or more planes in emergency mode.
If you worry about the signal not being received and the inability of air traffic control to spot the irregularity, then only initiate safety landing when the plane receives an answer-signal. Otherwise, let the plane fly however it wants and let it crash somewhere randomly because most places are better equipped to handle a random plane landing than a regular airport.