You're inventing solutions to a problem that actually worsen the issue.
edit: also, automated alerting solves literally all your problems here - and that should be an investment even if you're at a company with 100% RTO. Your first line of alert will still be digital in that case. If you're waiting to hear panicked seatmates to solve issues you're sure not worried about immediacy.
I find it interesting that there is this strong belief that how people organize and work together in certain businesses is generally done wrong. How would you know? A lot of critical interactions might not be tech-tech, but tech-business, for example.
The main thing is there are real trade-offs for the staff and organization, and those tend to get overlooked in favor of lifestyle or sunk RE cost arguments.
Btw., depending on country and situation, nuclear missile submarines can actually have wide latitude on decisions.
Employees are given some power and time back for the first time in decades after the opposite relationship ended up with being overworked, underpaid, and unappreciated as they are dropped at a moment's notice. So yea, I'm not surprised people aren't sympathizing for the companies who boasted about making record profits over the pandemic and suddenly they need to "downsize". burning decades of trust and goodwill has consequences.
Also, extremes rarely help. I'm not a manager, so even in office there are only people on my immediate team or a specific person or 2 I am working directly with on another team that I would do that with. When it is expected and we have the same tasks in mind. Even then it's better to get stuff in writing where possible so I'd rather send a message, even if it's just so I can give them 10-15 minutes to think over before I walk to them.