It has also taught NATO that Russia is still in the barbaric tactics mindset.
Oh those backwards Russians, still stuck in the past, where they were just a bunch of barbarian hordes. I assume the West, by contrast, has developed a civilized kind of warfare, as befitting their superior civilized culture? That's what you're saying, right?
The civilized West would never... oh yeah they would and they did, repeatedly, and it was worse actually in e.g. Iraq. So all this "barbarism" shit is just racism with no basis in reality.