Well in this day and age in which mobile OS's are severely crippled compared to PC ones and that is considered fine by the 99% of population it certainly doesn't surprise me that the new generation consoles are severely limited also.
On one hand I understand that for many regular folks their smartphone or tablet is now their main computing device, and for millions of people in less developed countries may be their first and only one. It makes sense then to make a OS easy to use and secure, but that doesn't mean it has to prevent us experienced computer users to do things like running software downloaded from arbitrary places or letting us manage our storage as we see fit.
iOS has always been a severely limited OS, Windows Phone it's a close cousin only with fewer applications, and Android, the one that was closest to a general purpose OS is being crippled by Google in the newer versions (e.g.: Removing the ability of writing to arbitrary locations on the EXTERNAL sd card in KitKat).
A sad state of affairs :(