Sounds like he needed excuses for his difficulties.
Bitz makes a tool that when set will set a hundred jigs to the same off set.
Work hard, ask questions, some times there are several opinions on a question, but they are opinions, not neccessarily fact.
A lot of what we do is fact, a lot is trial and error. It is all a learning process, no one has all the answers, but some have a great deal of knowledge to pass on, and what you derive from them is up to you.
You seem to have a pretty good grasp on what is and isn't worth listening to.
Good luck.