You do know there are customizable keybinds... right?
yes, while you can customize the keybinds, its important to make sure the defaults feel nice to use. customization should be simply an option, not a requirement. even with the keybinds, the issue of them being on the same button is still present as you cannot change them separately. changing the abilities to a different button will also drag the button to boost spring jumps along with it.