That component you refer to was necessary for the safe usage of the vehicle. If it fails, bad things would happen (and they did).
Having control over your tractor does not necessarily kill people. Death is not inherently implied by farmers merely having access.
Apples and oranges. Equating the two is silly.
Most people won't be adding in gotos and if statements, they'll be replacing borken parts and getting their tractors working again.
Those few who actually do end up writing code for it, and those who opt to run it, will do so with the full knowledge that it'll be their asses on the line when something goes wrong.
Either way, my point was that people won't die from access unless they do something really stupid, and death due to stupidity is going to occur regardless of whether the tractor is locked down or not.
