That is exactly what he wants them to do.
He stays in the shuttle, far away from the other ships because that's clearly where the Andalites are going next, he moved first and now they're both escalating fast and hard. He doesn't know what they're going to do but he knows the resources they have, now.
Even with the maximum resources the parts of the United States controlled by Yeerks can throw at it, it's going to take hours to get every mine in Alaska, and they might not even be there anymore, if they're smart...
He muses about this 'Leareth', their human leader. Whether Enstat is right that it might be worth talking to him. He - certainly doesn't, right now, feel in a position to open communications without immediately having something terrible happen to him. (Can they follow a comms signal and do a Gate directly to his shuttle... How did they get to the ship...)
He checks in on all the other news. Nothing much is happening in the rest of the cities, now, unsurprisingly. He asks for Enstat's written report, gets it, reads it. Considers whether it is worth sending him a radio message...but there's no way to talk to him, right now, without reaching the Andalites too...
He waits.