Premature to say
It's also premature to say they are legitimate competition when they've only had one show and are still 2 months out from starting TV. Really they're going to need to be around for a few years before being considered legitimate competition by many. WWE's been around in one form or another for almost 70 years and has been so synomous with "wrestling" in America that "wrestling" has been called "WWF/WWE" for 30+ years now. Even in the most down times, and even when WCW was beating them, WWF was the name brand for wrestling in the United States, so it's going to take more than a few sold out shows to get people thinking it's more than an alternative.