>>14
The main reason is probably the issue of embedding images/tables. Consider
https://www.gnu.org/software/emacs/manual/html_node/emacs/Text-Based-Tables.html#Text-Based-Tables
or
https://www.gnu.org/software/emacs/manual/html_node/elisp/Window-Sizes.html#Window-Sizes
But the again, the 'i' command super-useful.