blackburn
There is indeed the intention to remove FIA boundaries from the charts, and to simply replace them with something below the CEN frequency information, either denoting where the VHF outlet is located or the "area" served. How you work out where one "area" starts and another ends is a mystery. Another of Dick's wants evidently, and Open Mic was just parroting that as he does.
Down the track with "E" corridors all over the place there may be chart clutter, but it will be because of the corridors, not what I believe is essential frequency information.
As the safety regulator, CASA will have to make a call - as they will with just about all aspects of NAS.