Salut Michel,
your request is definitively not quickly answered and it's only a decent workload that keeps me from rambling philosophical here. When it comes to usability I think there is a total disconnect between the established user base (like those not using Auto Tool) and the new users NI imagines to reach. As a bilingual (de/en) I already find it unnerving when global players' IT departments force localized LabVIEW versions into labs and test-stands as many if not most of the translations may sound technical but are pure LabVIEW lingo hardly anyone without previous LabVIEW experience can make any sense of.
Adding to that, I hardly know any engineers here in Germany working with LabVIEW, that would invest time in memorizing these textual object shortcuts let alone function names. I know engineers with years of LabVIEW experience who never came across any of QD CTRL-R or QD CTRL-I or even QD CTRL-P by the way.
Any approach to "improve" QD by adding localized object shortcuts/mnemonics will only add to the confusion as long as you don't immediately get a For-Loop when typing 'fo' in a German LabVIEW QD in the first place (and you certainly don't plan on translating these keywords, are you?)
To answer your questions: Yes, it takes effort to remember those shortcuts no matter what language and no matter if full object name or shortcut. Wasn't that actually one of the challenges LabVIEW as a graphical programming environment was supposed to tackle after all!? And yes, considering all that, I'd prefer object shortcuts to stay the same across all (western) languages (if I ever get around learning them).
Best regards
Markus