I think this is a really a knock on "blue chip" status being given out based more on a player fitting into a prototypical mold and less on whether or not they can actually play. If a guy is 6'4"/220lbs, he's a blue chipper even if he's spent his entire HS career in a one-read system where he's never had to develop the ability to diagnose and process more than just very basic defensive reads.
I think it's also the prevalence of these systems where schools are content to just stick an athlete back there and let him out athlete the defense. HS systems that actually develop these guys with all the subtle nuances of being a QB are few and far between. This has been a part of HS football for as long as anyone can remember, but the last 10 years or so, you're really starting to see it spill over to Division 1 college ball. Both because many teams simply don't have the luxury of sitting a guy behind a veteran starter and allowing him to develop, and because a lot of programs are just fine and dandy with a guy who can out athlete 8 to 10 teams a year and get beat by the 2-4 teams who can play disciplined defense well enough to contain a one man show.
Two guys immediately come to mind.
1. Lamar Jackson. Superb athlete who was just the best guy on the field in 8 to 10 games every year, and Bobby Patrino was content with winning 8 to 10 games a year, so IMO, he crafted the offense around maximizing that rather than taking the time to hone his skills as a passer.
2. Deshaun Watson. Started out the same way as Jackson. The best athlete on the field in at least 10 games each year. The difference is, Clemson and Deshaun were not content with that. Deshaun actually took labels like "athlete" and "Dual-Threat" as an insult. Deshaun busted his *** and had the support staff willing to develop and hone his abilities as a passer. As a result, Deshaun became one of the best passers in the league and won a National Championship.
But for every Deshaun Watson, there are 4 or 5 Lamar Jacksons and Vince Youngs, and that is borne out by the evidence in this article.