alt Hacker Newsthis goes both ways; they'd be gambling that NATO doesn't launch things into Russia. From the accounts I've seen they did strip down the rest of the border forts to supply Ukraine.
Also, most of NATO's existing resources are currently not doing much but standing around. You can question how useful NATO's 'pre-drone' material is, and how much hasn't already been sent to Ukraine, but it's not nothing.
>they'd be gambling that NATO doesn't launch things into Russia
The official discourse in Russia is that NATO is already helping Ukraine launch things into Russia. So there's no gamble; for them, it's already a fact. Except, currently, it's just a proxy war where Ukraine has to jump through hoops to get military aid and targets approved, and it can only fire from Ukraine's territory. With a direct confrontation, there's no doubt that far more would be launched into Russia.