Because the comic is spreading non-sense as it is clearly evidenced in the article?

I don't believe Edison could spell Tesla on his best day

This is exactly the attitude I believe the article is opposed to, that I personally find naive as well - mythologizing people and single contributions and making science/engineering look like a game of who is more awesome. This is a conception that some popular science writing installs in many people and that could easily be cured by tracking the long history of many things we consider simple, in which at least tens of people contributed ideas that made the final invention tick. The article sums it up very well:

First of all, I’d contend that nearly every invention in the engineering or sciences is an improvement on what has come before – such as Tesla’s improvements to alternating current. That’s what innovation is. It’s a social process that occurs in a social context.