Originally Posted by
Always Flyin
It most certainly is.
When AA advertises that same day changes are a benefit of flying the airline, but then reserves the right to change that benefit at their discretion and then limits it so severely that it is effectively unusable, that is fraudulent advertising. Note the word, "Fraud."
If you cannot get a change to a booking using SDFC on a route (LAX-HKG) which does not, from what I can see according to the terms, permit SDFC , then that is not fraud but an expected outcome