He said "parts" of Ukraine. He didn't say all of Ukraine. I think it's probably highly likely there are some parts of Ukraine without Internet and using Starlink would be the only way to get internet.
And which "parts" of Ukraine would that be that don't have the view of the sky required to get Iridium, Inmarsat etc. working ?
Last time I checked, Starlink required a view of the sky too. ;-)