It does appear that Gordon elevates off the right leg, still favoring the previously-injured left one. And not going 5-on-5 certainly reduces the chance of re-injury. Frankly, it just is exhilarating to see him in action!
Brad Stevens has the luxury of bringing Hayward back into full action gradually, and that makes sense. It is at least as much about Gordon regaining faith in the strength and health of his repaired ankle as it is about preventing further damage. Most of us will be holding our breath when he takes to the air in real-game action to jam the ball. Gordon should have a good season.