Understand your point, but what's the alternative - 'Mengelberg', 'Bennink' or 'Misha', 'Han'?
I guess using last names is the usual thing. Using first names assumes a familiarity. I'm not really bothered by a writer refering to someone as 'Mr.' - nothing wrong with showing respect. I do have to say that I feel odd when someone calls me Mr. Secor. Even at my age, I think of Mr. Secor as my father, not me.
I've been getting the occasional "Sir" for a few years now. Not too cool with that.