For reference, if both preventing and healing status are banned, shouldn't these be in the banned tag as well:
Moves: Safeguard, Misty Terrain, Heal Bell, Aromatherapy, Refresh, Rest, Psycho Shift, Magic Room (potentially Trick and Switcharoo as well, I'm not quite certain)
Abilities: Leaf Guard, Klutz
In addition, what about abilities such as Trace or Impostor, which could potentially give immunity to status (since certain abilities are not banned outright)?