But hey it's OK because Meta only want to record everything to train their AI, who cares if some of their friends use it to create CSAM material, their third-world country workers upload it to PornHub and the NSA secretly pipe all of that through their servers (or servers managed by MI5 in the case of Americans).
That functionality that is supposed to stop the recording if the light is covered is not perfect. You can find lots of "hacks" being offered online and apparently some of them work.
It's pretty obvious Meta did the bare minimum here. It could have made these much more conspicuous or decided, wisely, not to unleash this crap on society given the privacy and abuse concerns that clearly outweigh the benefits.
They could have made it much more effective - better optics, better microphones, better battery - but that would have made it extremely obvious.
It should be enough that it is overwhelmingly likely.