That is easily solved by configuring other programs to use vi keybindings by default. Shells including bash and zsh can be configured to run in a vi-compatible

That is easily solved by configuring other programs to use vi keybindings by default. Shells including bash and zsh can be configured to run in a vi-compatible mode, and so can many other programs - there are even chrome and firefox extensions to enable vi keybindings. Nevertheless, for some reason no one seems to have created a Linux distribution with pure vi input conventions...