Well put. I learned to type on an old fashioned IBM typewriter when I was in middle school. We were taught the two spaces after a period rule and that's so burned into my mind that it takes effort to use a single space after a period.

This really felt like a two page rant over something that very few people in the world even notice when reading, and even fewer would care. On the other-hand, unlearning the two-space rule for someone who touch types fast enough to transcribe most people's speaking speed in real-time is going to take an enormous amount of effort.

Even if I agreed with the statements presented in the article I didn't find anything compelling enough to justify the effort of retraining my fingers.