Yes, mostly useless. As I stated, and I'm sure you'd probably concur, most companies and governments don't go listing their tech stacks (especially critical tech stacks) for the world to see. That in itself can be a big security issue. For instance, AWS isn't allowed to mention, list or use the name of one of the companies I do work for.
I take it you don't use the bank listed. That's fine. Does your bank do transactions with them? Other banks? Other institutions/stores? Do you use NASDAQ? Do others? Since everything is so interconnected, it doesn't take much for one of those services to immediately or eventually affect a bunch of others. It might be relatively trivial if AWS goes down for a few hours, but what about a longer duration and the avalanche effect? Is that impossible?
You also changed the goalpost a bit from "worry me more than being unable to get a Lyft," which is the comment I responded to, to "safety-critical infrastructure." I can't give examples of that because no one in their right mind would list that anywhere.
I take it you don't use the bank listed. That's fine. Does your bank do transactions with them? Other banks? Other institutions/stores? Do you use NASDAQ? Do others? Since everything is so interconnected, it doesn't take much for one of those services to immediately or eventually affect a bunch of others. It might be relatively trivial if AWS goes down for a few hours, but what about a longer duration and the avalanche effect? Is that impossible?
You also changed the goalpost a bit from "worry me more than being unable to get a Lyft," which is the comment I responded to, to "safety-critical infrastructure." I can't give examples of that because no one in their right mind would list that anywhere.