Go to Google Images and type elves. Do you see pointy eared humans or elves based on D&D descriptions? Again, not saying it's right, but whether its right is not the point. The most prominent images I see are humans with pointy ears.
Just for the record ... Google (as well as others searching paiges) uses your cookies to adjust searching on internet and gives you result, that will probably be "most relevant for you" ... So in theory, if you and i both "type elves" in google, we bot get different pictures.
//edit: Anyway ... even if you find kazzilion pictures of round shaped face elves, that dont mean they should have rounded face ... it only means that kazzilion autors are drawing them wrong. Like many authors quite commonly ignores the differences between Wyverna and the Dragon in fantasy.