When I started my PhD I read this text as well. Of course I was very motivated of doing only important research. After some time I even found a nice research topic and worked on it for over two years. Even my advisor pointed out that it was a very novel and foundational idea.
At the same time, a colleague published three papers in top conferences. Their approach was basically to look at publications from the previous conference, apply some delta that they had an advantage over other teams and publish this in the next round.
Reviewers were happy because their publications already got cited and they understood the topic well.
Whereas my topic used an algorithm from the seventies that reviewers had to revisit. My topic didn't fit so well into the overall conference trend and so I still have way less citations than those incremental works.
When someone asks me if it's worth doing a PhD I tend to say that you need to like the direction in which science is going. If you don't like it and are rather rebellious, it's better to start a company.