Anotherthing,
There are ATCO's working at CTC on future tools development - as well as staying current in their ops room. There are also some experienced former operational ATSA's, all working to ensure that ATC requirements are what actually drives tools development, within the constraints of budgets, timescales and engineering.
If you're concerned about EFD, you can get involved! The ATC lead for TC EFD is well known, and he has a team of users as well, contact him and get on that. Then you can actually be involved in shaping what you get, influencing the project.
Of course, to do that you have to raise your head above the parapet, which is more difficult than commenting from the sidelines.