Value to vision-impaired users would increase with an SDK, https://communityforums.atmeta.com/t5/General-VR-MR-Developm...
I'm sure everyone would welcome competing devices. Well, Meta and EssilorLuxottica are showing that a profitable market exists.
> Meta’s Reality Labs unit, which oversees the product as well as its virtual- and augmented-reality goggles, reported losses of nearly $5 billion in the fourth quarter.
It's definitely not technical hurdles preventing them from making one.
Censorship and alignment (speech, LLMs, glasses, drones, ..) rarely stops negative scenarios, but it slows positive scenarios from existence and competition with negative scenarios.
They did partner with BMW, CMU and some universities, https://www.projectaria.com/research-kit/