Yes and "too much" is a measure of degrees. Economics (something that effects everyone) is an integral part of a crypto asset. So, to say that these particular cypherpunks are too focused on one thing is not to say they shouldn't be focused at all on it. As well that they should focus on other important things like economics.
The analogy would be like "That football player is too focused on strength and cardio training and not enough on eating." Do you see how ALTHOUGH being focused on strength and cardio IS THE basis of football. Eating is very important to their success as well?