It's sad because they don't need to. Quantum is great, and you can remap your keybinds and use MaterialFox to get (almost) the exact same experience. Of course your average pleb won't go through this effort, but people need to know how good Firefox has gotten.
And to the people who disagree: Firefox has always been great, but it often came with a lot of bugs and inconveniences. It didn't use to be as accessible.
https://github.com/muckSponge/MaterialFox