I don't think that's how it is used in this context either.
A lot of early stage money in tech startups is there for the short(ish) term, and they definitely want to get their money out (i.e. "exit") at some point, not build a business over decades.
It's their usage of "exit", and the need to have a strategy for it, which drives the usage more broadly, I think. Agree it can be a bit confusing by confounding the above needs.