After watching the Alex "the movie" climb, it is obvious he cheated along parts of the route.
No ropes is not the same as the pure free-climb Honnold claimed. A free-climb means absolutely no use of man-made elements along the way--including special, climber-made, gouges made in the rock along the way.
The original intent was to film him crossing the hardest parts. But while they were filming the practice across those parts Honnold could not do it. He outed himself saying he cheated using a man-made grip someone added along the path that the cameraman did not catch. Honnold claimed the filming made him too nervous to succeed. So, there would be NO camera crew waiting along the route. Filming was only to be from the ground using super-telephoto lenses.
After waiting, and waiting, and waiting, for days, for Honnold to finally decide when the time was right to climb ... he went off on his own, insanely early, and he did not tell anyone he was on the way up. By the time the camera crew realized he was going up, it was too late to film him on the super hard part on the lower climb. They wouldn't have been able to film any micro-handholds anyway.
The other thing to notice that Honnold did during his practice runs, was that he chalked the hell out of the climb. He marked and remarked the handholds.
It was a stunt climb. Impressive. But not the 100% free climb that Honnold has claimed that it was.