Exactly. There's no other way to rationalize this. Ukraine mounts the first real offensive maneuvers in 6 months and within a week or two one entire area of the front collapses - without much of a fight too.
And it's not like this was some surprise move. People have been talking about a push in that region for weeks, every random ass commentator and youtube analyst saw this coming.
Also just where the hell is the Russian Army? Yes, they don't have cellphones in the field etc etc, but it feels like all we ever see are PMC, volunteers (Chechens etc), DPR/LPR militias and Rosgvardia units. Are they still operating under the assumption that this ragtag expedition force will beat a 600k NATO supported army along a 1000km frontline? If yes...just wtf.