Good one Field, thanks for the post.
I have seen this tube in the past and wanted to find it again.....very interesting, and we can say that the Russians are one of the most experienced winter operators in the market, and they are not crazy. They must know by experience that in cases of only dry snow, like this case, using an improved climb type v speeds is safe. I certainly respect their experience, but if sitting in that flight, I would call CC not to allow TO before I heard from the PIC what he would do with speeds and his considerations. I once, as PAX in an Air China B767 flight, out of PVG saw significant frost over wings and noted that they would go like that. I called the CC and asked her to inform the PIC, she did, he sent the FO to check, and they de-iced.