I agree with your position. I think, it is a mistake.
The only way to justify queens position over kings would be, that she has more useful attack-sets, but as only the best set is rated, this way to discuss does not really make sense.
The other question is:
Who should be attacked with either king or queen? Wigglituff, the only interesting fairy has been nerfed; Wherefor poison-attack?
Taking earthquake into account, there is rhydon and no further question.