bf, the discussion was on special procedures not skill per se, but that not to say that additional skills are not required. Skills for most aspects of flying have to be developed, steep approaches requires a subset of these involving visual judgement, acclimatising to higher descent rates, etc. Approaching LCY in a Southerly crosswind and at night, requires other skills – preferably not to be rostered on those flights!
WHBM, the airbrake out procedure is required specifically for steep approaches, but at other times it is optional. The recommended airbrake use during normal landing just happened to provide the required speed loss when approaching the threshold, but it can be selected at any time.
I recall that RJ specific ‘super fail passive’ Cat 3 operations required A/B out after GS capture as it provided slightly improved pitch stability and removed the opportunity for a destabilising A/B selection vs autothrust adjustment during the approach.