That's a pretty typical middle-brow dismissal but it entirely misses the point of TFA: you don't need AI for this, but AI makes it so much cheaper to do this that it becomes a qualitative change rather than a quantitative one.

Compared to that 'russian troll army' you can do this by your lonesome spending a tiny fraction of what that troll army would cost you and it would require zero effort in organization compared to that. This is a real problem and for you to dismiss it out of hand is a bit of a short-cut.