It failed because the C family is far superior - in mindshare and commodity dev experience. Ada may end up with a win to some degree if it plays to a narrative that all software needs to be mission-critical, no matter what the domain. Maybe in degrees, but that's actually true these days.

I did some consulting at a major US car manufacturer, and helped with a coding seminar, mostly in java. A fair chunk of those developers struggled with a fizzbuzz exercise. All I can say is this: don't leave your baby in the back seat of an autonomous car just to get out and recharge unless you have consequential trust reciprocation with the manufacturer tantamount to shutting them down if anything tragic happened. Of course, even that price is too low.