From understanding this is not supposed to add anything to existing workflows. The idea seems to be that the presenter can "live-code" the mathematical expressions during presentation, much like mathematics is taught at universities.
watch here for a demo
I also wanted to be able to share the board snippets discussed during the meetings in the same format, i.e., a simple HTML that self-renders itself as a board. That helps in both archiving the boards as well as reusing the boards in future meetings, if necessary. This was one of the few reasons why I just decided to write my own tool that suits my needs.
I have explained some of the reasons behind writing this tool here: https://github.com/susam/muboard#why (see section "Why?").
Here are a few examples of what the distributable board files look like: https://antmeet.github.io/boards/ .
This is a workflow, especially during surging interest in remote education + premium notes.
(Aside: I tried to copy the full error, but it overrides the context menu with some nasty flash-looking thing, why!)