You omit the larger picture, that after the era of satellites and massive electronic surveillance, CIA and other intel analysts looking at the facts usually got things right but the nation’s highest leadership too distorted or disregarded the intelligence. Or, in some cases, the CIA was conned, as it seems to have been by our supposed Saudi allies in the lead up to 9/11 or, as to the size of the Soviet economy, they believed the official Soviet statistics.
One of the unpleasant surprises from the Texeira Ukraine War leak is that the official briefing documents used internally (USA eyes only) took the Ukraine casualty propaganda numbers for themselves and the Russians as legit.
In addition, it appears that the count of Russian vehicle losses was from Orxy - a private group of Ukraine cheerleaders using open source photos.
The USA has a trillion dollar military and a multi-billion Defence Intelligence Agency which supposedly produces this sort of data.
Instead they base on strategy and operational planning on Ukraine War propaganda, and vehicle estimates from the Ghost of Kiev.
No wonder the Counter-Offensive was such a disaster !