It's a thing that i'm not making up. Some people from the SH community call it a "dope disconnect" apparently.
As a military man myself in the field, I too have done it all by hand, and still find it the most practical way.
Even Brian Litz promotes the ideas of truing, though he suggest not messing with bc for reasons I don't want to type out.
I also said in my initial post that a small percent of people apparently don't have the problem...supposedly. I've never seen someone in real life grab and app and put data in and cold barrel a shot at ELR on a small target first round impact either. Not saying it can't happen. With game...or people better yet, there is some margin for error. 10" tall head, 26" tall torso 72" tall person/target...one mil at 1000y being 36"..there's wiggle room.
http://www.accuracy-tech.com/truing-ballistics-data/