There are a lot of things that people used to do 50 years ago that weren't right then and aren't right now, and in many cases we've evolved to learn the difference. Some people were spanked a lot as kids, but I don't think most parents are actively spanking kids these days. So generally speaking, "This thing was done to me 50 years ago and I turned out ok" usually isn't the best argument in favor of continuing to do said thing.
That said, I don't really have a huge issue with this type of thing from a coach in general – but if you're going to do it, you better be a winner and have the respect of everyone in your program. If Nick Saban did this, no one is making a big deal about it, because he wins and people respect him.
Russ already has a track record of throwing players, coaches and others under the bus when things don't go well, so it comes off looking like just another a petulant attack on a kid by a coach who can't figure things out himself. And it's going to be a visual epitaph for his coaching career here unless we start winning now.