It's certainly an interesting topic. It's not good to submit home pages of blogs or content sites to HN though. The discussion has nothing to sink its teeth into beyond the generic theme of the site, and that leads to shallower discussion.
It's much better to submit the most interesting article from a site, the one that goes into the most unexpected specifics. I looked at a bunch of the articles on this site and they all seem pretty lightweight, unfortunately.
For example, here's their in-depth framing memo on STEM education: https://www.frameworksinstitute.org/wp-content/uploads/2020/...
It's available a couple links in from the corresponding "Toolkits" page: https://www.frameworksinstitute.org/toolkit/wiring-up/