I think for programmers the constant state of learning (code techniques, browser quirks, new tools, new libraries, new algorithms) takes the edge off of learning "a bit of linear algebra" for one little part of your program. Would it help to really know linear algebra in and out? Sure, but that list of things worth learning is near infinite and the times you'll need linear algebra like this is quite small.

Web developer especially need to get their sea legs and be comfortable working on unstable ground all the time - it's inherent in the kludge we call web standards. So if you take a list of all the things a web developer needs to know to be effective, let's just agree "high math" isn't going to be near the top of that list.