I'm another ABZ-based passenger who avoids KLM like the plague.
Years of hassles and Customer Service (an Orwellian title in this context) who see 'No' as the answer to everything and wilfully ignore issues raised hoping that they will go away.
The problem we face in this geographic area is that we pretty much only have three hubs to chose from in AMS, LHR and CDG. Lufthansa may well offer a future alternative but not for me at the moment.
Of the three CDG and Air France are the least worst alternative. Isn't that an awful thing to have to say?
Won't bore you with my KLM stories but clearly they see SLF as something to be endured and ignored much as their sister company AF now seems hell bent on copying.