If there's a good AR headset you'd have to be able to stop me (and a million other people) from forcing wikipedia onto the device. That might be a harder technical challenge than actually making the AR headset.
The previous two computing revolutions "personal computers" and "apps/websites" were enabled by the openness of the OS and the openness of TCP/IP and browser vendors, respectively. If the next "AR/VR" revolution depends on complex vision models, there's no guarantee they'll be open for independent devs. And judging by the last few years, it's highly likely they won't be.
BTW I think there's good reason they don't release GPT-3 or DALL-E or PaLM or whatever. That shit is dangerous.
Edit: ok you can hack the hardware to let you run the models or make the necessary network calls to run them. That's still way different than Wikipedia which is a first class webapp where you don't have to hack anything to use it.