I think his last paragraph says what you said. He points out that higher wifi speeds do benefit the end user on the wifi side, meaning locally, with improved LAN transfer rates and possibly range. So, it kinda does look like he has a clue.
People do all the time think that they have to get the latest wifi N version to speed up their internet over their 3mbps DSL lines. I get questions all the time when I recommend WRT54G wifi routers. Why not N?? But the N is faster. I want a wifi N!When they tell me they are moving files locally or streaming from a PC locally, then I say bump up the WiFi speed.
Yes so lets call morons to people who buy ac routers... Cause that's what he did...