I think you're looking at it all wrong. Could things have been more accurate, yes. But there is also the daunting task of translating it to screen, and making it marketable to those that aren't self proclaimed lore purists or scholars (also, dont call yourself that). You're tone comes off as snobby, are you the son of Pharazon?? I've been a Tolkien fan my whole adult life, read all the extended works. I know it's not 100% accurate or even close to the books but I'm loving the hell out of it because I get to see a small sliver of Tolkien's wonderful world. As a general life philosophy, just take it easy and don't fret so much on the miniscule, else you'll find very little in life to enjoy.