100% i second this.
The problem with adding any new skills is that we do not know how they will work, so you could end up allocating too many points towards them (for existing fighters) and end up totally ruinning the build of a fighter you have been developing for over a year.
The same kind of applies for the physical skill cap (but to a much lesser level), i mean, most people have Sensational or Elite everything. At least with physical skills, we know how they affect your performance though.