While I do agree generally, there are a couple things to note

1. Author was made to pay for the bureaucracy and a rigid rule, and found a way to revert that. Now Karen pays the price for the bureaucracy. In the end Author made it a 0 sum game while there was not necessarily a need... and yet fair is fair, he was entered in the game without asking, and he played it.

2. > She has no power, absolutely no power

I doubt if this is true. In the end she said "fine we'll mark the file as updated" while having received only partially what Author sent. This shows she had permissions to change the status of their file, and agency in determining if she should.

In the end I'm not sure if it was worth making someone else suffer, there was probably that 2 pages file that they needed to send, which would have been enough to send everyone on their merry way. Beyond just creating suffering to someone else, that could have very well ended with "fine, we'll review those 500 pages, I'm not sure if we can do that by the deadline".

It's an interesting state that you can force someone to unlock their phone with biometrics, but you can't force them to reveal a pin.

Anecdotally, I have been to the US a few times in the past year, and seen no change myself - where are you going and why? Thanks have a good trip. It was for short business trips, and I'm white with a number of documented entries/departures, so my experience might be very different from the next person though.