The poll recently swinged back to quanta cards - it was a tie with PPMs a few days ago. However, I noticed a few people started using the term PPM outside tournaments too (League, then War). I also noticed that less people asked for clarifications about PPMs than we received about quanta cards. Furthermore, we have been using PPMs since November, so I am safe to say people got used to it by now.
Because of these reasons, I am considering to keep using PPMs. If that's reasonable enough, we can add the term to the Glossary.