@benwerd While I still belive learning a bit of html is fundamental to an elementary school curriculum I do agree with you it wouldn't belong explicitly in a rewrite of #IndieWeb principles maybe something like:
Create content as you specialize in your passions.
The IndieWeb thrives when creatives share broadly. You may be a performing artist, a game designer, artist, or ball player. When you share content and reflect on your journey you improve your skills and empower others around a shared passion. Many in our community have an affinity for building these networks through a love of HTML.
We belive wherever you gather it should be in a place where you control your data and your passions become an asset not an advertisement.