I think that in a few circumstances - where the trans person looks enough like a member of the opposite sex to cause distress (e.g. a trans man (biological female) who has been at the hormones and thus has a beard/has bulked up) then they can also be stopped from using the facilities for their biological sex too.
But generally I agree - headlines which say "trans people are banned from single sex facilities" are at best misinformed and at worst clickbaity* because what they actually mean is that trans women are banned from women's single sex facilities and trans men are banned from men's single sex facilities.
*one might even say it's a nebulous dogwhistle 