I'm a picky-as-hell desktop publisher myself and although I tend to catch most "errors" like the one in the article, it's "designer's fatigue" that causes some to slip through. You can only look at something so many times and still catch (obvious) errors. That's why, for example, proof reading requires fresh sets of eyes rather than the same people over and over.
As for the "problem" described in the article; as an iPhone 4S owner (3 months) I hadn't noticed this but I am appalled by the font Apple chose to use in the notepad app. Whomever chose that font should be stoned, hanged, quartered, shot and burned... or alternatively forced to do nothing but design birthday cards for kids ages 0 to 5 for the rest of his/her hopefully miserable life.
Either way, he hasn't kicked the habit yet if after 6 years he's still chewing those nasty things.
I've done this for the past 12 years and have never met a graphic design student who knew what they were doing unless they actually loved the job, and even then I couldn't work with them because they were taught incorrectly and weren't willing to listen/learn how to do things the right way.
So be prepared to listen and learn things all over when you go out into the real world after graduating.
My most recent "encounter" was a graduated graphic design student who never even liked the job (not even during her study), yet applied for one "because she needed a job". Needless to say I got her canned well before her contract became permanent.