As a teacher, I always taught it "by the book" but when questoned, as in your Russian example, have always admitted that in social dancingt it really makes no difference and is much easier not to do these changes. The only RSCDS dance I can think of were it makes any difference, is in "Waltz Country Dance".
Personally, since it is not fixed in stone, it can easily be changed, by a a method using two phhhhases:
1. Stop insisting on a foot change.
2. And wait for the folk process to take over as the brainwishhed die out.