From what authority do you speak on this topic?
TS has so far given me the impression of being business savvy and if I'm charitable to assume competence of her management company, I'd assume she would shy from legal minefields
Given the above priors, my estimation is that her lateat blog-post (like all others) was vetted by publicist(s) & legal advisor(s). YMMV.
I could similarly claim "OS X El Capitan is being QA tested six ways to Sunday" without being in Cupertino. You could ask me for proof and I would have none.