The app isn’t shutting down today, so they may have decided that the write up is still useful.

More likely the team who put a lot of work into it were unaware of the decision to kill the product, regardless of the final sunset date, until today.

The document seems to be an updated version of something written last September. From a quick glance it’s not really a major overhaul.

It's 8 paragraphs of iteration over the previous version. ChatGPT is probably among the authors.

There is a link at the top of that document that takes you to the original version which was published last September. As far as I can tell it’s mostly the same as before.

i guess the disney deal falling through was the impetus rather than vice versa

Though at this point it's not clear that anybody who's agreed to give OpenAI money is actually going to do so