Sorry, no JV HS pitcher is conditioned to go 167 pitches at one time. Don't compare a still growing body to what grown men have accomplished. And pitch counts in a game have nothing to do with # of innings a pitcher throws in a year.
Add that up to what he pitched in a week's time (including BP's). Worse yet, would be if he HADN'T pitched as much before that game. Also important is how much he threw per inning. High pitch count innings are not good.
I'll bet he's pretty sore, I'll even bet down the road sore becomes pain.
The Texas Ranger's "new" philosophy is not new to many teams, just to them. Just because a pitcher is on a 5-7 day rotation should not mean that he does nothing in between those games. Most MLB/MILB pitchers that pitch are back and throwing the next day, so are many college pitchers.
The pitcher's of yester year, except for a few freaks of nature, used drugs and alcohol to relieve the pain, which was legal to use by MLB standards.
There is validity in using pitch counts, but it doesn't mean squat unless managed properly.