Because eutelesat does not have enough constellations so would be constrained in operation. Ukraine is kinda like in an abusive relationship with starlink and is forced to depend upon starlink even though its hurting them but they really cant do anything about it in the short term where it matters, this should be a reminder to everyone using starlink or any american service that they hold you by the balls and would use it as leverage. Europe should ramp up its homegrown alternatives and transition towards them as fast as possible.