The RM runs on linux and they hand you the admin password. I'm not sure how much more open you can get. Just SSH into the device and then use one of the 3rd party stacks for syncing.
It feels like a tax on the less technical/informed.
Right?? I mean, their tech is amazing. They are clearly cream of the crop, passionate, engineer craftspeople. They should be the anti-Apple and be extremely open. RaspberryPi style.