Woman's Poetry Prize?

Each year, the Pat Lowther Memorial Award is given (I believe through The League of Canadian poets) "for the best book of poetry by a Canadian woman published the preceding year."

In sports, for example, I can understand different leagues for women. Men, being generally stronger, would otherwise have an unfair advantage.

But in poetry, in any of the creative arts, what disadvantage do women burden under that they cannot compete directly with men?

What would Margaret Atwood or Alice Munro think of an award for the best novel by a woman? I trust they would not accept it. Women in the arts display through their work no less insight, inventiveness and creativity as their male counterparts, and often greater. They do not need to be singled out for special recognition.