I don't think is ignorance, but I think is mostly a lack in a better solution to compare with. I mean, if you have something that works great (in any field, not just tech), you take it as yardstick. If you don't have a real super-nice-outstanding solution to compare with, you will be always ok with what's coming, even if it's the worst implementation ever made.

I agree with 90% of the points in the article, but I also know that others have implemented similar solutions and only fews have, instead, tackled the same problems with a different, better implemented, solutions.

Anyway, the most annoying example is Skype, I really hate the "oh it looks like is a Live Account, redirecting..." flow, it's annoying.