My overall problem with the scene is just the actual execution. I could go either way with the Sith Eyes, but I always felt that simply being angry wouldn't give Luke the edge over Vader, especially after what we saw Vader was capable of in EMPIRE (which I think is the real point Sepharih and Teharri are making, is to simply SHOW how Luke is so much more powerful than Vader).

Has Luke developed and gotten stronger? Yes... but JEDI is a mere 5 years MAX after EMPIRE... there is no way Vader would have gotten that weak in such a short period of time.

I always felt there needed to be something to visually show just how much power Luke was using, and have him ripping panels and pieces off the wall, hurtling them at Vader (to reflect Luke's position and defeat in EMPIRE). You wouldn't need the "yellow eyes", but you do need something other than Mark Hamill wacking on Vader's lightsabre and then Vader taking a dive.

Even as a kid I felt let down... the moment David Prowse just got down ON HIS OWN and just let's Luke pummel him.. say what you want about anything, that was just terrible choreography (maybe edit out the actual kneeling down part, as well as maybe edit it so Luke is wacking at Vader's chest instead of his outstretched hand [with Vader's sabre turned inward to block multiple death blows... could have the sabre turn outward to signify Vader getting weaker, which is then when Luke cuts his hand off]?).