Its interesting that he’s poking the marshmallow here, because Musk can still turn off Starlink, or make it unusable for Ukraine as much as his contract with DoD allows. This implies that Ukraine screamed bloody murder about this months ago, and DoD has given them gear to be able to bypass Starlink.
I think DoD also doesn’t like Elon having this kind of power, and allowed him to be a stopgap now that they never plan to use again. It’s interesting from a geopolitical and financial perspective for Starlink; they blew it and they’re not a future reliable partner for taking Russia’s side.