Watherboy... He is a high school kid. He is not competing and doing something he loves for your entertainment.
Go pro out of HS? Not smart for almost any male runner especially a middle distance runner. Maturity, endurance, speed, racing development takes time, much can happen during that time. On your advice, he would forgo far too much and risk his future (both athletically, academically (he is going to Stanford which is one of the best learning institutions on the planet earth), financially (much more to living beyond a very short pro career), socially/mentally (much happens during informative college years that opens and in some ways cements ones future) and going to college and being on a college team is a lot of fun.
Get over your hang-up about his coach. His coach is saying he believes his athlete is capable of running sub-4, that it is not being chased or overly focused on and when it happens (which it will) it happens.
Sit back in your armchair and stop your grumbling. Keep your enjoyment about track at the forefront of your thoughts and as a way to enjoy the fine young talent that is USA HS track and field. hope that those kids that you follow are not rushed along in their development just to break HS records. That way some of these kids might entertain you as did Komen at an older age.