> Kids these days... Why would someone in their right mind think working on the Voyager project could damage their careers?

It's an isolated legacy-project with no future. Mostly everything you learn for it will be only useful for this specific project, so all time to invest there is time to can't invest into something useful. Sure, there are probably some parts to learn from this too, but It's less than what your competitors will learn on their fancy modern projects.

> You can work on new and fancy tools all you want to improve supporting tools

Voyager is in maintenance, there is no big innovation or big progress to be made there. It's just work to hold the line as long as possible. And I guess nobody want's to be the one killing it because of a poor attempt to innovate something.

You should hire for personality characteristics, not knowledge. I'll take anyone who's worked on a weird obscure system and figured it out from first principles over Front End React Dev #8482828 with Opinions on algebraic effects.