And it makes sense. If the choice is between getting killed by the enemy and loosing the war or risking that one in 10 000 launches results in friendly fire it might be worth it but it would not be for a country not fighting a war for survival.

It's an existential threat for Ukraine. The US has not faced a similar (external) existential threat in a very long time.

Ukraine fights back or they lose their sovereignty. Most of the conflicts the US gets into, it's entirely a choice to put soldiers at risk.

So yeah, the evaluation of war effort will be different, because the situations are completely different.