Modal text editors in the terminal, like Vim and Helix, are an evolutionary dead-end for users of non-English (non-Latin-alphabet?) keyboards because they rely on the terminal emulator to translate physical key presses, and thus they may not reliably switch away from an insert mode using a non-Latin alphabet.
Thesis of the video, as I understand it:
Modal text editors in the terminal, like Vim and Helix, are an evolutionary dead-end for users of non-English (non-Latin-alphabet?) keyboards because they rely on the terminal emulator to translate physical key presses, and thus they may not reliably switch away from an insert mode using a non-Latin alphabet.