Well, at this point Daryl doesn't actually know the Count has plans for it to be used in case of imPort rebellion. That's just one of the eventual possibilities for it. As far as Daryl knows, Dooku wants something to replace Helix Station as an evac point/safehouse. Since he doesn't see it as being 'safe'.

But I'll have Daryl contact him once he has a location selected and we can go from there even if Charles doesn't get in on it himself. :)