Because the time investment isnt worth it most of the time. Unless its a widely used framework / library its worth no ones time to try and understand API docs, each and every component and then deal with some genius patterns thrown here and here. Its a skill that has low market value so sharpening it isnt worth it.
right but not all things are done for "market value" reasons, and that's kind of my point. If you don't find this stuff interesting, what's the point of building your career in the space?
