For me, as a it manager, the issue is quite more serious with the token issue that with the space occupied
For amazon, their main concern is information security for their customers.
Yes you can not make as much money as you could with datahoarders everywhere, but trust me that they would loose ALL of their main customers if there was a serious enough security breach.
This issue of the token IS a serious security breach!
On the datahoarders matter, sorry kids, but your addiction is not the issue. You can encrypt ALL you want, but the dedup will still work, because it works on a block level.
You may not be deduping the same linux iso, but it will find somewhere inside all this pbytes match of your blocks and cross-link them so it saves space. It's just this simple.
It's far worst the load on the systems and network by the plex guys than the space occupied.