"Why is Comatose so difficult to remove?"

I was just looking at its Bulbapedia entry, and it seems like they really went out of their way to make sure the ability can't be removed, but I can't for the life of me think why. Is there some kind of potentially gamebreaking mechanic or bug that I'm overlooking? The full extract is:"Comatose is unaffected by effects that prevent sleep (such as Uproar, Electric Terrain and Sweet Veil). Comatose is unaffected by Mold Breaker, Turboblaze and Teravolt. A Pokémon with Poison Touch using Sunsteel Strike cannot poison a target that has Comatose.Role Play, Gastro Acid, Worry Seed, Simple Beam, and Entrainment fail if the target has the Ability Comatose. Skill Swap fails if either Pokémon has Comatose. Comatose cannot be copied by Trace, Power of Alchemy, or Receiver. Comatose cannot be replaced by Mummy or suppressed by Core Enforcer. If a Pokémon that has its Ability suppressed passes that effect to a Pokémon with Comatose via Baton Pass, that effect fades. If a Pokémon that already has its Ability suppressed obtains Comatose with Transform, Comatose's effects are suppressed (i.e. the Pokémon will not be protected from status conditions, is not treated as asleep for effects such as Sleep Talk, etc.). " via /r/pokemon http://ift.tt/2DaQ5UV