Like I said, details matter. I mean come on, "astroturfing" was a direct response to actions from the RIGHT. Specifically, Bentsen noted he was getting a bunch of letters supporting the bill, but they were like the exact same. He deemed that astro-turfing. A fake grass roots movement.
You seem to think coining the term is akin to creating the practice. Really, you think an organization involved in astro-turfing would actually come out and say it. Seems to me, coining the term, rather Bentsen or Pelosi, is a plus, not a negative.