You missed the point. Too many people are credulous, and lack a rigorous education in epistemology and the scientific method. This has been a problem forever and isn't something Facebook can fix.
Also the article mentions that even though they had they option to reduce it, they actively chose not to. How is this not something that I shod be critical of?
Why is growth above everything else important? What if they disabled the group discovery part? How is that impossible?
Otherwise: Earth's gravity is too strong. Planes use too much fuel. Let's criticise Earth...
Key players like Facebook throwing in the towel because “we don’t see an easy way to stop contributing to problems that are growing in size and can potentially destabilize democracies, world ecosystems, or a few decades from now hunan existence” is not an option.
The problems we have today are growing exponentially in seriousness. Human beings need to learn to get along in ways they never needed to before both due to resource stress and technological powers we never had before.
Facebook’s amplification of many human weaknesses is only one of many risk factors. But I don’t think many young people realize how easily humans have fallen into disasters in the past, which amplified by progress could easily become existential today.