He's absolutely right. There are some biologist (some bioinformaticists) who need to be real math pros and the ones that are have a distinct advantage. However, most biologists aren't and they do fine.
For instance, to do qPCR (a way to quantify gene expression) requires a lot of mathematical calculations, essentially calculus and linear algebra. You don't need to know them though because there is great software which does it for you. You do need to understand what its doing though to use it. I've seen people use it poorly because they don't understand it.
So you need "intuition" about how calculus and algebra work, bu you don't need to do it. I know what an integral is. I know what a linear transformation is and how it can be used. I could not though for the life of me integrate or derive anything myself on paper.
30 years ago you could say the same thing for an accountant. They needed to be an absolute whiz with not calculus but also arithmatic.
Now they have Excel, and they don't need to be a master at doing math, they need to be a master at understanding it.
I think most people don't like what EO said because they think he's against math or math education, and he's not. Do you know how you get math intuition? You take a lot of math classes.