"You'll find that they're controlled for more than one reason." Ilde's claim of that domain has kept Lexa far away. Of course, Lexa's own meaning there isn't entirely clear. The animosity between the two women will be found out soon enough, as they will surely butt heads again.

"I've been given opportunities to see other worlds through Cathaway's memories. Have you met with her yet?" It may also lend them the chance to see more themselves, to find worlds like that that can better serve them.

But then, it may be that the Enemy prefers more technologically ... advanced locales to attack.