Because folks can instead use <a href="https:&#x2F;&#x2F;github.com&#x2F;ianyh&#x2F;Amethyst" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;ianyh&#x2F;Amethyst</a> if they want a tiling window manager like xmonad. It is pretty easy to install and it works well.