It's classic Meta. They made a consious decision to completely hide the cameras so the person wearing it wouldn't feel mildly uncomfortable while they completel

It's classic Meta. They made a consious decision to completely hide the cameras so the person wearing it wouldn't feel mildly uncomfortable while they completely violate everyone around them. The little light offers zero transparency - it's plausible deniability wrapped in a least-effort attempt at caring about your privacy. The only thing that made this strategy fail the regular Meta playbook was the glasses became too popular too quickly, and rather that people slowly sinking into acceptance and complacency, they decided to speak up and shit on the glasses and call out the wearers for being creeps