I dont discount your experience at all....but youve obviously not flown into Hong Kong in a typhoon then?
Bugging up Vapp & using manual thrust is essential (an i.a.w FCOM/Airbus procedures, as you say, for significant turbulence)
I do agree that too many Airbus pilots get a real bee in their bonnet over VLS. It is not a critical speed and gives you significant margin above Vs....but dont for a second believe the AOA protections will always save you from a stall.
They cannot and will not with significant windshear. (Not trying to be condescending, so please dont take it the wrong way...its always good to hear others experiences)
Quick question though: you've never used manual thrust on approach ever? Not even in training? I assume you have in the sim? What about base training? Havent you ever done a single engine, manual thrust, approach/landing in the aircraft (not sim) for training?
All these are requirements in my airline.