There are better things to aspire to than predictability whilst making someone else rich.
Making someone else rich is the objection.
Having no job or income and having to worry about how to afford food or rent is surely much worse than "just" having a stable job.
Or how about a super stressful job, like the Japanese salarymen who are literally killing themselves?
https://www.zillow.com/homedetails/8057-W-Farm-Road-100-Will...
Projections, my dear Watson.
It's 2023 and today companies will quite happily lay you off the moment you aren't profitable to them.
This fictional person made it all the way to retirement and good for him. But the guy who followed this strategy for 15 years and now is job hunting because the company needed to cut 18% of its staff? He's got a huge gap in useful skills and decades left before he can retire.
That guy is in real trouble.
If I could be guaranteed I'd have the same job forever with the same tech then who cares, but I've never met anyone for whom that was true. The people that don't learn either retire early or are forced to switch careers.
You just got unlucky enough to interview them instead of someone who got laid off after 15 years and were amazing at their job and could pick up a new tech they’d never heard of and immediately be off to the races.
Arthur was happy.
My favourite passage from Camus' little known book Software Development is Existentialism