I think is very clear: If you loose what seems to be above 100 tanks / vehicles in two days and advance 50 meters (quite different from what Ukraine is doing), you may want to reconsider your strategy, but hey look, go for it, keep on!
That's the logic here. When Russia lose huge number of tanks, armoured vehicles and I'm not even talking about human power just in few days and advance by something like 50 metres, there is a reason for them to brag about it.
But when Ukraine advance by 50 metres in Southern direction, then it's failed counteroffensive.
And when I see whole colones of Russian tanks getting destroyed near to Avdiivka, it looks that Russia haven't learned anything since the beginning of war when we saw same things in Kyiv direction.