*not sure wether shocked is the right term to begin with, it seemed more like indignation to me.
After reading the NYT article it still seems to me that a more ethical company would have done more to address the probable issues. Meta did very little and seemed to cherrypick the most favourable public studies. Anyyway, all this doesn't seem suprising or even unusual to me. I generally don't think that we should expect companies to act very ethical. Rather, incentive structures should be created/amended in a way so that purely self interested companies act as if they were ethical.
[0]: https://www.nytimes.com/2021/10/10/opinion/instagram-faceboo...
I'm beginning to suspect that maybe we're told this too often, so we're starting to take it for granted that correlation can't be causation. But the saying actually only means that correlation is not necessarily causation. Quite often, correlation is actually there because of causation.