But somebody made a decision to not have you guys killed
Absolutely, not questioning that for a moment!(Same reason my wife wears similar lights when riding her horse along public roads in winter also it also looks embarrasing).
My military time has been before the incident you mentiioned btw (got drafted in 1995 for 10 months), which makes the incident even more tragic (if they didn't use the warning lights), as the lights at the rear seem to already have been common practice in some armies at the time...
No, 95 or so cents to establish a trusted bot-in-human-skin would be a bargain, so doesn't offer any protection.
I am thinking more of a web of trust kind of thing, ideally based on physically meeting people and exchanging keys in the respective first trust stages, and also with an easy option to distrust signing certificates again in the trust chain.