The benefits you acknowledge (distribution) are not because of the tech but in spite of it.
At the end of the day all it would take is one of the 3 major browser vendors to offer an alternative. That alternative could be distributed to a large percentage of desktops in a relatively quick manner saving billions if not trillions of dollars in wasted productivity.
It will never happen though.
* EDIT: This comes from someone who uses React, Redux, webpack, etc.. daily
At the end of the day all it would take is one of the 3 major browser vendors to offer an alternative. That alternative could be distributed to a large percentage of desktops in a relatively quick manner saving billions if not trillions of dollars in wasted productivity.
It will never happen though.
* EDIT: This comes from someone who uses React, Redux, webpack, etc.. daily