Welcome!
It is my understanding that airlines are subject to a $10,000 fine for each person out of their seats during this final stage of arrival. As this would be difficult to police (the flight attendents aren't going to report their own airlines), the regulation appears moot.
I printed this article out for my husband to read. He asked a interesting question. Why would the flight attendant have asked the author to write a description of the gent in the yellow shirt? She could have easily stepped into a private area (galley maybe) and written it herself. After all, she'd probably walked by and interacted with him several times herself.
Regards from Dothan, Alabama.