I don't know whether this is the appropriate forum, but adding TERM st TERM st-256color to dircolors.hin would be of interest to users of x11-terms/st. Either that or fix /etc/bash/bashrc to perhaps have an easier way to override not setting colours.
the upstream coreutils list is for requesting coreutils updates /etc/bash/bashrc already has a trivial way for users to do their own thing. use ~/.dir_colors.