Your reject reason wasn't actually being shown before this update
That's really odd! It seems to be displaying both before and after the update. I have it set to reject anyone with a VPN over at Southwest Firearms. When I turn my VPN (Nord) on and try to register, I see the message (which is what I took a screenshot of).
You've forgotten way more than I know about this stuff so I know better than to argue, but I'm curious as to why I see it (and whether others are seeing it or something different). Maybe you can give it a shot on the site?