I have no stake in this either way. I have been throwing mainly Innova for many years now, but with Discraft, Gateway, and now completely new companies getting into the disc golf disc manufacturing business it makes sense that these companies will have something unique, perhaps specialized, and oft preferable, or at least competitive with Innova.
This is not a safety issue.
This is not a "Character of the Sport" issue.
It is an "Innovation" issue. A "money" issue. A "new option" issue.
Seriously, how can this seriously be considered a threat to the character of the sport? It's a flying disc for crying out loud. It's not like it is a Phlazer with no flight characteristics what so ever. Heck there have been PDGA approved discs that are arguably more projectile than disc.
As far as who is the final arbitrator of what kind of disc flight represents the "character of the sport", it is not the PDGA, it is not Innova, it is not Aerobie, it is not Discraft, it is not Lightning, it is not Gateway, it is not Dave Dunipace, it is not any single person or organization who decides this. It is anyone who picks up a disc and chucks it during competitive rounds. And they can choose to fling it in almost an infinite number of ways and methods. If you don't want them to roll then make them square! People have brains, some tend to use them on occasion.
Innovation in disc design is rare, innovation in throwing technique is equally rare. I am appreciative of both.
Other than the Epic Thumber Glide, only the Beast as it went around a corner and continued to glide an extra 60 feet elicited as much of a sense of awe from me this year. The different way discs fly is cool. Enjoy it! Revel in it.