No... its probably something a bit more simple... Devs just haven't got around to supporting it. There are a bunch of features Google has added that have yet to see wide-spread adoption.. here are just two that are related to this that would make people's lives FAR easier.
1) App data backups. On a restore, or first boot, you can restore all the apps you've installed previously. Google also added in the ability for developers to include up to 25MB of internal app data into that backup set (doesn't count against your Drive quota btw). So game progess, app settings, etc... all would get restored when you restore the app. A bunch of Google apps (but not all) include the API to use it and its great. But app devs need to include the API into their stuff... and very few actually do.
2) Smart Lock API... Google's Smart Lock is woefully underutilized. Basically what Smart Lock can do is authenticate your app logins with your Google account, so if you uninstall/get a new phone/etc.. all you need to do is launch the app for the first time and Google Smart Lock will authenticate automatically. Again, devs need to integrate the API. Waze (owned by Google), Netflix and too-short list of other apps use it.
The FPS is the same way... the app devs need to incorporate the API into their stuff in order to use it.