They should always have had a second, back-up option, because relying on such a brittle a thing as satellite comms when fighting a military power like Russia was bound to have issues.
I'm pretty sure they know that. Especially as Starlink is brittle mostly because of its (rather disgusting at this point) founder figure and his ramblings. But this is armchair advice: what other options do they have and how do you fund them?
(most of Starlink for the Ukrainian army is being paid for by Poland)
> This isn't true either by $amount or number of dishes
"Poland is the largest single contributor, paying approximately $50 million per year through its Digital Affairs Ministry for Starlink services in Ukraine. Poland has provided over 20,000 Starlink terminals and covers the ongoing subscription costs. As of recent reports, Poland has spent nearly 323 million PLN ($84 million) on more than 24,500 Starlink terminals over the past two years." (reuters)
Or, if you'd like somewhat outdated info from Wikipedia: "As of December 2023, Poland remains the largest single contributor of Starlink terminals to Ukraine, providing 19,500 out of 47,000 delivered"