No? Because they released the trailers for the west after the event finished with the same information. There was clear intent there. The only thing that was Japan-focused was the actual celebration itself which was why we got that footage months later.The only trailer we got was for the 20th anniversary, which was a japanese focused event. It would make sense that the beta releases first there.
That would, again, be false advertisement. They could have put a “*for Japan” disclaimer if that was the intent, but the intent was to inform worldwide fans of the beta. Anything else would be misinformation.