Yeah, I don't really disagree with that. Generally, this is also why conscription is stupid, and conscription at the border for people who are fleeing on the first day of fighting is worse. These people have no interest in defending the country.

I suspect they just want to stop people from routing, which is as alternative issue, and has it's own kinds of considerations.

But you're not wrong, even if it is a societal level existential threat, if you don't give a shit about your society dying, then clearly you aren't going to defend it.