I agree.
I see it as simply a financial consideration for the facility. If they have enough demand for single-sex classes, run them. If they don't have enough demand to make it worthwhile, tell both sexes that they're going to have to associate or go somewhere else.
>>I see it as simply a financial consideration for the facility. <<
If I read the article correctly it is public facility so I don’t think financial concerns are at issue except for a lawsuit from one side or the other.