I requalified for 1K in 2022 via >15k spend + some of the 21Q1 + 21Q2 promos. Looks like my status and my PlusPoints all expire 1/31/2023. Far as I can tell there was no benefit from this extension for people in my same situation. That said, if I still lived in Asia as I did until Q3 this year, I'm sure I would be sincerely grateful for the extension.
All in all, I've really enjoyed being back in the Americas where I can fly my tail off. So, keeping things in perspective, despite the ongoing dilution of the upgrade pool, life is good!