Honestly guys this is nothing new, major, groundbreaking, etc. This was considered a skiddy fast n dirty way to access an email/facebook/etc like... 6-7 years ago? It still works of course because people need a way to reset account info, can you imagine if every idiot who forgot their password had to call facebook/google/apple directly? But it only gets you access to old info, you dont learn the password, and worst of all, it leaves tracks EVERYWHERE.
[hypothetical]
I mean yes, when I needed to reset an iphone my sister had bought in her infinte wisdom from some random pawnshop... and it was still password protected and had its old phone number.
I did simply reset the password to the email, so i could reset the password for apple ID, then clean up my tracks as best I could, and trusted that it was some dumb hick who would just assume he forgot his password.
[/hypothetical]
BUT, I wouldn't consider it for anyone who had even half a brain.