Season of Discovery - Novice Frost mages in WPL are PVP enabled even on PVE servers

I was doing my Overheat rune in Western Plaguelands and got ganked by a 60 orc rogue even though I’m on a PVE server (Wild Growth). Apparently rogues are camping those NPCs because they are flagged for PVP and using your spells on them causing you to become PVP flagged.

Please fix this, I play on a PVE server to avoid griefing losers.