Correct but the context of his argument is that OS X was designed to run on “powerful” hardware and iOS is not. It is not a convincing argument because hardware is always improving. The original AT&T UNIX ran on “powerful” hardware for its time.
So it depends on your perspective; whether you’re more impressed by what software developers could do with limited hardware specifications or how far the hardware designers have come to allow such software to exist. A glass that is half-full or half-empty.