PC crashes are here to stay. 343 has no idea how to fix them and they will never be fixed.
So I think the logical step is to just accept the fact that the game will have bug plaguing it during its lifespan. So what’s next? Damage control.
343 should put as a priority a Rejoin feature for ranked. They already have some of it for social (works one out of ten times maybe but it’s better than having no rejoin at all).