Right. As the source link explains at the end, one critical difference is that megacorp controlled journalism is the same for everyone, so it can't create scenarios where multiple diametrically opposed groups all simultaneously believe their views are very popular. That's much more destabilizing, because it creates issues where the status quo is unable to move at all because nobody's willing to engage in persuasion.
Yes, it's just the same. Rich people once again have a disproportionally high influence in people's opinions. It's just different rich people now.
Criticizing the system on this basis won't accomplish anything. Even if you win and get rid of it, we're all just going to once again end up under the influence of rich people in whatever new system replaces it. Search for the root cause.