A developer can barely need maths and also benefit from an understanding of maths at the same time. Unsure what your point is, if not just to dunk on programmers without math backgrounds.
To be clear, I don’t have a math background beyond a handful of undergrad classes (I studied biochem). I just really despise the anti-intellectual attitude of “YAGNI” applied to maths.
What's more anti-intellectual, me explaining why someone might use math as an SWE and what I chose to study instead, or you telling me that I'm "unaware or ignorant" of things I'm quite familiar with?