I've seen this movie before. This is the sequel to Anonymous vs. Scientology and it's recycling the first film's plot, but with a bigger budget, more special effects, and a group of villains who are less comic, better known, and more dangerous. At this stage of the protests against Scientology, the long-time anti-Scientologist activists discovered Anonymous and found a way to jump in front of the movement. The same thing is happening here, with Michael Moore and others realizing that there is now a mob they can get in front of and (pretend to) lead. In reality, they're following from the front, which is the opposite of leading from behind.
As for how the first movie ended, it resulted in opening Scientology to reporters investigating the organization like it hadn't seen in a long time and tarnishing its reputation among the young. It also gave the members of Anonymous a taste of organizing and a realization that they can take on something bigger than themselves. Now they're ready for something bigger than a fringe cult that runs themselves like a business. Whether they're up to this task is another question.
As for how this installment of the franchise ends, stay tuned. They may be rehashing the plot so far, but there is no script.