The articles makes points throughout, but one I found interesting was in the first paragraph. Zuckerberg acknowledging professional failings, suggesting FB does not consider itself to be perfect.

For example, a recent Facebook privacy failure (also, a separate failure for FB PR department): https://gizmodo.com/how-facebook-outs-sex-workers-1818861596

Some find it worrisome that these systems don't work quite like users expect, and believe there is risk we're not accounting for.