I see it as part of the suite of tools that one ends up installing on all client machines anyway. Most people don’t use just a stock OS installation without any additions.
Also, some editors have this built in, like Vim with Ctrl+K [0], and a Misty IDE presumably would have some equivalent.
ASCII is quite limiting, so it would be nice if we could move a little bit out of that lowest common denominator.
[0] https://vimhelp.org/digraph.txt.html