There’s ways to interpret that, though it would be better if there was a shot of an injured Vader walking back to his ship to really sell the point that he barely survived the encounter and needed to fix his suit, to the point of not even doing a confirm kill on Obi-Wan under the rubble (maybe you could add his hard breathing during shots of Vader walking to give the idea that he’s struggling). Combine that with the escape on Jabiim, assuming that’s still going to be part of this edit (emphasized by the flashback sequence showing that he still is being taught by Kenobi even now), and there’s certainly enough there to give the impression that Vader considered himself a learner in this scenario.
It makes Obi-Wan being stuck under the rocks a move out of desperation rather than a true final pin on their confrontation. Because the alternative is what happens in the show where Vader just assumes he killed Obi-Wan and foolishly goes to leave the planet, making him look incompetent as he seems to consistently give Kenobi ‘outs’ to escape; once on Mapuzo and once here.
I 100% agree with you! If it’s okay with you, can I use your idea of a shot of Vader walking back to his shuttle, with audio of him struggling to breathe?
Cheers,