I think what they're referring to is another strategy game trope: you can "disband" units and they just go away. It's possible that they think this means the disbanded units just stop existing, but for Parson he might re-appear in his chair in the "real world". Or not.

We'll have to cross that bridge when we (or rather: they) get to it.

It's also possible that Parson is just taking a very literal approach to the whole "you have to obey my commands" instead of being forced to by the great will of the cosmos or something. He does like his rules!