Noticed this when I was updating the client a few days ago. Haven't played much online due to work schedule this last year plus. Not enough flex to play regularly to keep good PvP skills. But I do lurk for maps, mods and occasionally connect with family friends to bot bash (among them I am several levels above in play and game knowledge so PvP amongst them with me in it is not practicable).
However, with this policy, I do note an issue. Back a couple years ago when I was playing online regularly there were times I visited my brother's house, and later on would use his PC to play online. Under this policy I'd have to be logging in on his account since it was locked to his PC. Isn't that forcing the smurfing that the policy was supposed to prevent?