Thanks for the feedback and apologies that you were confused.
We currently want to retain the documentation for people who previously implemented those card types, particularly since the pages do state at the very top, in bold, that they were mapped to alternative cards.
I’ve just reviewed the Cards section of the site and don’t see any indication in the main Cards pages that you can or should use those three card types, so again, I’m sorry that you were caught out here, and I hope you can find an appropriate alternative representation for your content.