You do realize that you're basically dismissing experts because they specialize instead of learning the basics for another technology each year. Or has one year become enough to be an expert on something?
I didn't read that post that way... I don't think "the same year of experience repeated 10 times" actually leads to expertise. That phrase, at least the way I've always used it and the way I feel I've seen it used, is more like saying "somebody who just keeps doing the same thing over and over again and doesn't even attempt to learn anything new". Ie, it isn't just about not learning new skills, it also includes not improving existing skills and knowledge.
Learn what? A new thing every year? How do they become experts then?
Just because you learn a new language or technology doesn't mean you become better at problem solving. It just means that you can solve problems using a different tool.
At least, that's the way I always interpreted it.