I finally had a sufficient number of Restaurant charges that did not earn 4X points that I finally reached out to Amex today via chat. I was prepared to highlight each charge for them, but instead they immediately responded that they were having "technical issues" on their end and would have my charges reviewed. Will post back when/if I hear back (though based on the response some others have received, not expecting much... but I agree it's gotten to the point where it's important for cardholders to bring this to Amex's attention.)