Something's wrong with that link... try this:
http://www.nytimes.com/2016/05/10/opinion/guess-whos-taking-remedial-classes.html

Meanwhile here are some old thoughts on remedial college classes from a thread called The College Board's False Alarm about SAT Scores.

Here is a link to the college forum, as related topics there may be of interest.

This is really interesting. I have my own ideas of what has caused this. But I am glad to see that this topic is getting some media time

I also live in an midde/UMC suburb and I'm not surprised. The math instruction in our local high school is appalling ("Honors students can teach themselves;" the video teacher who taped his morning classes so he didn't have to lecture in the afternoon; etc.).