I think there has never been good reason to believe that most proprietary tools are properly encrypted at all. The most common form of this is that while the messages may indeed be end-to-end encrypted, the keys are stored in the cloud, which allows them to be given to the authorities upon request, perhaps secretly.
A real concern. I suspect the chain of trust is already undermined by states to a large degree. At least that should be assumed if secure communication is required.
Still, policy decision like this should be rejected and used as an example of bad policy crafting in the future. It isn't the first deed of UvdL on this topic.
