"And non-Muslim females will be expected to do likewise. "
No, they won't according to the link I posted (which was the whole point of posting it!)
"The event will be open to women of all faiths, and bikinis will not be banned, but Muslim women will able to wear clothes covering their bodies which are not normally permitted by the park. "
So if that is the situation it seems entirely sensible to me
A quick turnabout in the face of criticism? See 237SJ’s link at 12:11 Sun 14th Jun. The intention there was quite clear. It will be interesting to see what happens.