Any member of your team could win a life-changing amount of money in the lottery, inherit it, win a gambling bet, etc. Frame it as a good thing rather than a death or a change of hire - somebody might just flat out retire because they don't financially need your employment anymore.
I don't really see why framing it as a positive thing or negative thing matters, no one is actually getting hit by a bus, it's just a hypothetical scenario.
Might, or they might not. Just as if someone were hit by a bus, they might be able to communicate from their hospital bed...or they might not. Hope is not a strategy.
Well yeah, that's why the whole scenario in the first place is that they're hit by a bus and instantly killed.
Maybe it should be rephrased as "blown to a million pieces" then there's no question you're discussing a situation in when there's an immediate and irreversible loss of knowledge.
If your team members who won the lotto would just give their two weeks and quit, then your company/team has a substantial morale/motivation problem.
Such a company is not creating an environment where people enjoy being a part of it.
And I wouldn't expect anyone in that position to give me two weeks. Two weeks is about not burning bridges. If I never need to cross that bridge again, what do I care if it burns?
IMO that makes them an asshole.
But, to your point, sure. If I have FU money then depending on a lot of things including what arrangements I could make with an employer, I might well choose not to work for someone else.