It also doesn't say "Nationals". No way I read that "ad" and take it to mean an Xcel National Championship meet.
We do a "World Classic" meet in our area from time to time. We really didn't think it meant "World Championships".
World Class Invitational is named after the host gym...World Class. World Class Invitational also does not specify it required a certain score in order to compete. In this case the gym name most certainly is not "USA Championships" and it's very misleading when it mentions that qualification is necessary.
The email from Annie Hefferon went to ALL USAG Professional members yesterday, so their has obviously been a lot of confusion regarding the competition