I find EF to be a very trans-friendly place, but for some reason their lack of stock of MTF items and binders continues. This could be a concern for money spent/recouped, or they could be having a hard time coming to the right negotiations with vendors. I don't know, I don't work here, I just work here!
(I just run a club, and am on the Social Media team... I don't actually
I would recommend just contacting customer service and asking about it. They're usually pretty helpful and considerate.
But while they're not toys in the strictest of terms, I think that binders definitely have a place in the Gender Play section in EF's store.