It didn't used to be common, it's fairly recent that Russians being put in extended AP has become the norm. Even at the beginning of the invasion, extended AP didn't appear to be common unless you had a military background, were from a "closed city" or had some special training that got flagged. Within the last year or so, however, it seems everyone is getting hit with it.
We considered doing a pinned thread in the past but I was not sure how widespread it was becoming. The only info I'm getting about this is anecdotal stories from people here on VJ posting about it. I havent' checked Vinskogo but if what you're saying is correct, it seems this is a new blanket protocol for most Russian nationals. I will consider making a pinned thread on the topic soon, I just wish I had a better source for it beyond just these individual reports.