This has to be 100% bull crap because the “official” isn’t revealing his or her name and obviously this isn’t the stuff of classified leaks. It is so lame he or she won’t even go on record, or the reporter is just just making this crap up.
......I understand your questioning EVERYTHING coming from that part of the world. Most of us are. But, that said, I don’t believe there is any question about the photos showing a 40 mile long convoy of tanks, APC’s, artillery, trucks etc.
This would tend to be “corroborating” evidence that Russian troops have indeed sabotaged enough pcs of equipment in that 40 mile long convoy to stall further movement of the convoy.
Remember the 50 "intelligence community experts" who told us that Hunter's laptop scandal was most definitely fake and a product of "Russian disinformation?"
Or the dozen "intelligence community watchdogs" who said in the US MSM, that Trump's call to Zelensky in 2019 was most definitely a grave threat to national security?
I could go on, but you get the point.