I didn't expect the India argument anymore. But going down that route..., British India was from 1612–1947, and English speakers there today probably have skills comparable to most of ours here in the States. Yet, I still pay a few bucks, and trade my clicks and ad space to read articles like these originating from here (New Yorker, Times, etc.).

So if the author happened to have farmed out work on article from Indians on Upwork, then maybe he'd be onto something.