If they had done this I would have already bought one. I won't until they do. I regard my reading and note taking as private and I don't want them processed off device.
You can simply not connect it to a Wi-Fi network. It supports transferring files over USB according to the documentation [0], though I haven't really tried that.
Their FAQ also mentions that you can use the device without their cloud service [1]. I believe the handwriting recognition (which isn't really that useful IMO) requires to be online.
If you don't want the company to access any of your notes, just don't enable the cloud features, don't even create a cloud account. Then you can sync between your other devices and the RM with some scripts making use of SSH for instance - it's not a very convenient solution but definitely works.
