This author understands neither AR technology, nor consumer electronics.
The idea of always on 6 dof tracked advertisements that show up all the time is a bad product that consumers would not buy. The battery would not last long, it would be annoying to use compared to other devices, and it would struggle to deliver value.
The author writes as if web browsers, Windows, Android, and iOS have ads built into them popping them up randomly when that is nowhere near the case.
The law of ad entropy in technology states that over time, ad coverage always increases. First in the applications hosted on the platform, and then eventually the platform itself will just start serving ads. At the heat death of technology, all platforms will be completely covered in ads, leaving no more more energy for useful work.
See: the web itself, search engines, app stores, desktop search, operating systems from desktop to mobile to TV... the list is endless and the trend is relentless. It already started with AI, now injecting ads directly into chats.
So I think it's not a stretch to predict AR platforms will be the same and the ads will be in your eyeballs. It doesn't really matter that these anti-features will cause the product to be worse for users if it makes the platform more profitable for owners.
I can also guarantee with complete certainty that any sort of "neural implant" technology will one day be serving ads directly into your brain.
Counterargument: what they've done to TVs.