Seems to be a combination of Russian incompetence and opportunistic strikes by the Ukis, especially if they are now developing their own Grom-2 ballistic missiles, similar to the Iskander, which would certainly give them more bite. This whole war has effectively demonstrated the shortcomings of the Russians in effective battlefield management and theatre command and control, especially integrated warfare. But given all that, I'm surprised the Russians have achieved what they have so far, trying to invade and manage a theatre the size of France and Germany combined, with a highly capable, mobile, creative, and motivated Uki armed forces, backed up by the full weight of NATO and the US combined. At the moment it's finally balanced, almost a stalemate, and it could go either way in my view.