Sure, but we already know that humans are not very good drivers (car accidents are #1 or #2 causes of death for age groups between 5 and 50). If you can do better than humans with more input, then that is compelling reason to use more input even if you can do just as good with a cheaper system.
I agree, but was narrowly addressing the claim " I also see no reason, a priori, to 'blind' a vehicle to certain spectra of EM emissions". Cost is the a priori reason, albeit one that is potentially balanced by others.
