This is naive. Do you not realize that Edison was an engineer? Just because he had a workshop of people (not so different from having a team of engineers) doesn't mean he didn't create tons of experiments.
Yes, I'm aware of that - but was simply referring to the characterization he got in the comic.
Has some truth to it IMHO. :) Whenever you hear people go on about how innovation is such a social endeavour and how nobody really invented anything you can be sure about one thing: that the author hasn't even tried inventing anything.