I'm CTO of an edtech company and I'm quite excited to see this list- outside of specialist VCs like Reach and Learn Capital, the typical level of understanding of these nuances by investors is shallow. This will up the game.

However there is one glaring absence: I don't see a recommendation to show provable academic results. You could follow all of these snd still have an ineffective product that doesn't actually advance student learning. Hopefully that will change as schools demand more data driven results from their vendors.