Not really... I think this extreme humanization of non-human races mostly stems from movies (like the LotR series) and, above all else, video games... as long as they only existed in written or illustration form, this trend wasn't nearly as pronounced.
True. The manuals do an excellent job at giving elves a lot of nuance. They go into a lot of detail about their ways, their culture, their economy, their dressing, their diet, their emotion, psychology, daily rituals and a lot more. It is the adaptations that fail to represent those things. I suspect elves are simply a niche, and only us, friendless psychopaths obsessed with the race for one reason or another, only care for all of that :'D
