When I’m using Kinopio for prose (like writing a paper or a blog post), I’ve found that the width of the cards a bit narrow in terms of readability. So, just another plug for having an option to toggle card size.
I played with the size a bit, and changing the max-width to 480px feels good. It gives about 65 characters per line, which is comfortably inside the range that Butterick suggests.
