You are interpreting things in a way that is, in my opinion, a rather skewed reading of the article.     You are making some statements (high school OR specialized training) and pretty much missing the entire point that the idea is to do the specialized training IN  high school (change the OR to an AND)

you request numbers to prove a point that you are making that the only one suggesting is true it you.   You are the one suggesting that making $75K out of a high school is an expectation.  No one else is.  I am suggesting that it is possible to not have an advanced degree and earn that sort a salary within a reasonable timeframe (a few years).