I’ve been using TaskNotes for a while so was pleased when I saw David’s system was using file-per-task and with TaskNotes you already have recurring so don’t need his workaround 
I’ve been getting my robot to write tasks without knowing there was an MCP - as you say, probably not needed but where did you find it? I don’t see it mentioned at the docs you linked.
I also use the TaskForge app on my phone so I can have a widget of my tasks: TaskForge - Obsidian Tasks App - App Store