Please take into account that the continuity of the PT/ST didn’t exist when these scenes were created.
In ROTJ after Luke turns himself in on Endor, Vader admires his lightsaber saying “I see you have constructed a new lightsaber. Your training is complete” This would mean that constructing a lightsaber requires use of the Force: they cannot be mass-produced, and such control of the Force is only achieved toward the end of a Jedi’s training. More importantly, it also shows how little Vader understands about becoming a Jedi; in ANH he says to Obi-Wan “I was but the learner now I am the master”. And in ROTJ on Dagoba, Yoda tells Luke that he’s learned all that he needs to know and Luke says “So I am a Jedi” then Yoda says “No, first you must face Vader”. So basically Luke has completed the classroom part of his Jedi training but becoming a Jedi requires an inward personal journey that’s emotional and spiritual. Vader doesn’t seem to understand this and may be under the impression that the classroom training is all that’s needed.
Analog Releases of Films That Contain Deleted, Extended, & Alternate Footage That’ve Never Been Released on DVD/BluRay
Evil Dead 2 (1987) 35MM Preservation