I don't know if I'd say Six Flags will keep it hush hush as the article seems to suggest. Incidents like this are so rare, that they capture the nation's attention. Six Flags is going to have to do some damage control and point out "Hey, our ride is safe" because even though that's apparent to us (and many logically thinking people), there are a lot of people right now running around in circle screaming about how airtime is dangerous and roller coasters are "rickety death machines".
I'd fully expect Six Flags to come out and say "We screwed up, she was too large to ride and we didn't catch it, but here's how we're fixing it." Because if they keep it quiet, the only ones releasing findings on the ride are the GP, who think the restraints click, and the ride ops laughed and smiled deviously as this poor woman begged for her life.