Just because the post belongs to an .io domain doesn't mean you are allowed to automatically negate what the author may be trying to say.
What's the problem with a .io domain? Honest question.
There was a recent failure that affected everyone using the TLD and a popular blog post explaining it and suggesting that you use something more reliable. Some of the comments on the article pointed out that the same company runs .org and a handful of other reliable TLD's.