Non-pilot speaking.
In the UK, when the road side repair services (AA and RAC) found their voice channels overloaded, they moved to a data system that increased the throughput of information by a remarkable amount and improved the entire operation. Further, it allowed an electronic record of all exchanges to be made that can benefit both parties in a dispute.
However ... if you were receiving all that data onto the display screens, rather than into your ears - would that mean spending more time head down, rather than head up observing?
Perhaps the compromise is that - all the data is transmitted to the system and then it reads it aloud to you. Synthetic voice systems are very sophisticated now and, if you did not hear it clearly, you could check the screen or have the system read it to you again and ATC are not involved.
I'm sure that this kind of system has already been promoted but we will not get rid of euro control until we have had more than one major prang that could be ascribed to euro control.
As always, the only things that change minds are money and death. Such a change would save money but lose political influence and so we have to wait for the death bit.