The very simple answer to your question is, the developers that have made these great things weren't Management people. They don't generally work in MiS, and wh

The very simple answer to your question is, the developers that have made these great things weren't Management people. They don't generally work in MiS, and when they target something, they've just gone their own way. This leaves multiple fragmented camps of GUI to target, increasing the technical debt before you can get anything done. Wayland was a step forward, but overall 20 years too late. This stuff isn't rocket science; if something hasn't been done its a structural issue that needs to be addressed but the project maintainers of the projects that you would need to target don't see it that way. Why should someone that puts effort in to a project like this be forced into a dovetailed management strategy that is doomed to maintainability failure as a 1 bus factor project.