That's the point, no? Ukraine isn't NATO. Ukraine can't do NATO doctrine. So Ukraine also can't win against Russia if they're this behind on artillery supply. This is an issue for Ukraine. It's not for NATO. But we aren't talking about NATO, we're talking about Ukraine's ability to fight back.
[I get most of my information from Ukraine: The Latest] It seems to be that when Ukraine has even the below-necessary arms (be that artillery or air support or smarter, longer range weapons), Russia is unable to make significant gains.
Whether this is due to the impotence/utter incompetence of the Russian military or the inherent advantages of defensive fighting, I'm not sure Ukraine _can lose_ this war as long as NATO continues to the supply them with the tools.
