(Author here.) Yeah, I get where you're coming from. Ultimately, this was an editing decision first and foremost.
Beamforming is cool and magical, and MIMO even more so. The post wasn't intended as a primer on wireless technology, just as a fun read for folks to enjoy. I tried to sprinkle in some nerd-snipe-quality technical detail and offer links for folks who might want to dig in, and MIMO is explicitly discussed in both the 802.11n and in the several links on beamforming I provided.
I barely managed to explain beamforming without that sidenote turning into a paragraph of its own. I don't think I could have done MIMO justice in a sidenote.
Beamforming is cool and magical, and MIMO even more so. The post wasn't intended as a primer on wireless technology, just as a fun read for folks to enjoy. I tried to sprinkle in some nerd-snipe-quality technical detail and offer links for folks who might want to dig in, and MIMO is explicitly discussed in both the 802.11n and in the several links on beamforming I provided.
I barely managed to explain beamforming without that sidenote turning into a paragraph of its own. I don't think I could have done MIMO justice in a sidenote.