I hear ya! I think you hit on the big factor about UV that is not as implied. Instead of being a unified UV app and account that you setup, it's really just a consortium of service providers that studios will employ one or the other, that you will have to chase down to redeem your token for a particular movie. Even that is getting 1 step too far in my book. In current day, it seems pretty obvious that the way you set something like this is you either redeem your code at an iTunes store for i-devices or GooglePlay for Android devices. No extra accounts, no extra apps, no hunting down websites...just leverage the infrastructure that is already in place for pretty much all mobile devices on the planet.
Margot Robbie is THE most exquisite human creature on the face of the planet, in this moment in time.