This precedent creates a great opportunity.
Since the WTC incident I have proposed a number of suggestions on various Pprune forii for simple, currently feasible mechanisms that will guarantee no repetition ever again of the pax aircraft component of the WTC incident.
What this (alarm/bail) incident teaches us is that pax aircraft can/should be equipped with a "fuse" that absolutely prevents departure while a/c is still on ground (shutdown if already lit), and that there should be a button available to the crew at the pointy end which blows the sucker in a hot second.
Technical details are cheap/easy. The guys in the tower can keep some spares for repair of embarassing mistake activations. (It looks like a 3AG, but really has a cpu & other stuff inside, so not a replicable item.) The plan obviously wants to include a gold-plated squat switch...a couple of them.
Precedent exists: One expects that hungover crews in the backwaters have exercised similar freshly invented no-go options in times past.