I think if you fly often you will always have a few sub-par experiences. As you will above -par.
As a premium frequent traveler I do expect more instead of less. I can understand the “frustration” of ExecPlatAA especially because of the poor response given by customer service. But it can be worse, I recently traveled with Etihad and had a bad experience. I didn’t get any response from their customer service until I started cc-ing the CEO in
my messages. And even then the response was poor. I just moved to Asia last September and am trying out new airlines. Etihad will not be my first choice. I just booked Qatar for a flight from Saigon to Miami.