[jerf]

The "monad" problem is worse; many of the "tutorials" were actively wrong about some critical element, often more than one. I don't think I've seen someone claim to have linear algebra "click" but be fundamentally wrong about it somehow.

One advantage of linear algebra is that it is, well, linear. Linear is nice. It means you can decompose things into their independent elements, and put them all together again, without loss. The monad interface, as simple as it is, is not linear; specific implementations of it can have levels of complexity more like a Turing machine.