That's a really bad article.
Could she sue them? Maybe then we'd actually get an official answer to "what did she say that was transphobic?" seeing as no one can seem to point it out. It'd be amazing to see a court rubbish the transphobe label that's been slapped on her.
Rowling has vehemently denied accusations of being “anti-trans”, insisting that she simply doesn’t think their life experiences are valid or deserving of respect.
That's not satire. It's not funny at all, and it's not even remotely close to what she said.
I hope JKR sees it and takes action, I really do.