Facebook has been used for misinformation for a significant longer amount of time. Usually I get annoyed when people say something like "but what about X", but in this case it's a case of one company often being proven to manipulate, distort, etc (Facebook) vs a possibility that another company might do that.

It’s not a possibility that another company is doing it, it’s about the state actors involved in doing it and otherwise unknown parties. In the end it’s no specific company that is responsible as the aggregate whole of all data available and the mechanisms to algorithmically control content is the sophistication of manipulation going on today.