After a number of reports that P.T. had been removed entirely from the PlayStation Store and was no longer available for download, Sony has confirmed that this is not an accident and the game is gone for good. This news came via an announcement on the PlayStation 4, explaining that P.T. had been removed, you can still access it you had already downloaded it, and you won’t be able to download it if you choose to delete it/remove it.
No further information was included on why P.T. was removed, but at least we got some level of closure. Naturally it would have been better to tell people to download P.T. before it was gone, but at least you can always shareplay it if you missed out.