Meh. The article is very superficial and not entirely thought through.
The author is from western Massachusetts, according to his profile. As such, the probability of him having ever come into contact with SF from countries that are not America is a wee bit on the low side.
Even if he is a fan who imports stuff from the rest of the world, the fact that most SF is published in the english language markets first (due to said market being the biggest), and especially written to appeal to said market, will colour his experiences.
And yeah, what Qent said applies as well. American SF is different from British SF, which is different from German SF, which differs from Russian SF, and so on. The problem is, an average american reader will never get to see stuff that didn't originate in the US or the UK, unless they are truly exceptional, and of course, marketable to american readers.
On another note, in this little entry, he notes:
Additionally the way our democracies work has been changing, with more and more megacorporate interest and power playing a role. If a power like China does finally embrace a more democratic system, it may not come from public pressure as much as bending to meet corporate interests. That country has an interesting few decades ahead of it!
Which indicates that he apparently missed this little thing called "Cyberpunk", which came up in the 80s and 90s. An entire subgenre, dedicated to exploring the ideas he says aren't explored.
