They have belief in high tech short war. few thousand standoff weopons suppose to solve all the problem.And I suppose all those frigates and subs don't need ammunition?
Look at Sweden. it is among the first AESA radar manufacturer. now it has Gripen NG. they are not going to shift there labor to make more than necessary ammunition.
Russia clearly want to prolong this war from start. otherwise these cruise missile would have destroyed infrastructure much sooner. they still not after bridges and railway line that dignitaries use to meet Ukranian President.Not trying to put you on the spot, just looking to get a discussion going.
The hypothesis that the US is intentionally dragging this war out is no more convincing than the hypothesis that Russia is doing the same. A decisive Ukrainian victory over Russia has way more benefits for the US than a long dragged out war. The more this drags on, the further it cements Russia's relationship with China, and at the same time gives China more time to further strengthen its hand over Taiwan. It's simply not in US' interest to do so.
Therefore, there are only two possibilities: either NATO cannot produce the necessary hardware, or they can't send that hardware to the frontlines. Either way, it reflects poorly on their ability to wage war in a peer scenario.