Looks like they recently updated the look/feel of at least one page on the web site.

On the My Activity page, it is now incorrectly showing an expiry date on points being the same as the last activity in the account (Jan 25, 2024 posted AMEX points for the month in my case, and I had made a points redemption for a reservation the day previous to that):

Your points are about to expire.

Don't lose progress towards free nights and once-in-a-lifetime experiences. Keep your points from expiring by earning or redeeming them on any qualifying activity by Jan 25, 2024.