It's an opinion and a set of observations, not an "ideological rant and angry invective". If you agreed with me, would you still call it an angry rant? And yes

It's an opinion and a set of observations, not an "ideological rant and angry invective". If you agreed with me, would you still call it an angry rant? And yes, I know they're mediocre (in the sense of average, not exceptional) because there's no evidence they've accomplished anything of note, but are merely marketing themselves as raw material for hire to big companies and then complaining that they aren't getting hired because they don't "fit in". That's not what high achievers do.