Regardless of wanting sane defaults, this is not something superfile can do on itself: it runs in a terminal, and normally terminal programs do not get to choose what font is used.
So the "best" it could do is bundle the font file, but then you would still have to configure your terminal to use it. At that point, it's easier to just tell you you need a nerd font and link to their repo.
That being said, I kind of agree that, since NerdFonts are pretty good and by now quite widespread, it wouldn't be a bad idea for major distros to patch their default monospace fonts so that you get NerdFonts out of the box in the default terminal.
But, in general, if you go out of your way to install a different terminal emulator, it's unlikely you'd have much trouble changing its font anyway; still, getting everything to look nice and pretty is sometimes harder, so I suppose wezterm is commendable for including fonts and colorschemes.
(The above really mostly applies to fonts as they are an additional dependency and also highly dependent on user preference. For pretty much everything else I agree that good defaults are under-emphasized in CLI/TUI utilities. Probably because options usually get added incrementally and breaking historical defaults is not a good idea.)
So the "best" it could do is bundle the font file, but then you would still have to configure your terminal to use it. At that point, it's easier to just tell you you need a nerd font and link to their repo.
That being said, I kind of agree that, since NerdFonts are pretty good and by now quite widespread, it wouldn't be a bad idea for major distros to patch their default monospace fonts so that you get NerdFonts out of the box in the default terminal.
But, in general, if you go out of your way to install a different terminal emulator, it's unlikely you'd have much trouble changing its font anyway; still, getting everything to look nice and pretty is sometimes harder, so I suppose wezterm is commendable for including fonts and colorschemes.
(The above really mostly applies to fonts as they are an additional dependency and also highly dependent on user preference. For pretty much everything else I agree that good defaults are under-emphasized in CLI/TUI utilities. Probably because options usually get added incrementally and breaking historical defaults is not a good idea.)