I don't know why the live demo is broken, or why they even need is since there is a live demo on the main page, but the usability for all cases strikes me as ex

I don't know why the live demo is broken, or why they even need is since there is a live demo on the main page, but the usability for all cases strikes me as exceptional on the main page where it works as intended. I am not convinced that your cherry-picked restriction improves the usability.