I couldn't possibly compare various sources of the LOTR in order to witness the difference in that short line that excited Walt so much, for I simply don't have them available!
But the matter of comparing the various sources is, if I have correctly understood, to understand why
Tolkien changed his mind about
Gandalf's death!
This is what I dislike in the criticism-stage of any piece of any art!
An author creates a piece of art. And if he is a genius then I am absolutely sure that he will find a lot of "flaws" later when looking at his own creation. If he may and if he's able to - he will correct them. If not.... he may only comment on the comments of the public.
But there come the critics !!!!
And often they ascribe ideas to the author that had never crossed his mind in reality!
It is sad that it is quite a common practice that literature is being taught upon the opinions of the critics!
So... I guess Tolkien's statement in the quoted letter concerning the "cheating" and the "defect" of Gandalf's death is just his attempt to reconcile with the critics.... I can't be sure.....
From MY point of view however, I understand Gandalf's death as a necessary step in the story, sth. that must have happened.
Of course, I first of all should say that I absolutely agree with everything said here about the "death" of a
Maia!
But.... I'd comment on the necessity of letting Gandalf return as "white" wizard.
Up until that moment the story as covered by the "
Hobbit" and the LOTR (this far) we see a character whom I call an "organizer"

. Besides, Gandlaf so far is just a "merry-old-jolly fellow who, they say, is a wizard!"

I somehow think that to turn this character into an "action hero"

he must have "suffered" a certain change.... No! Not "certain" but a
major one! So, Tolkien, I suppose found the most "convenient" moment to do this change to one of the central characters of his story. For the previous Gandalf would NOT be as convincing and "in-place" in the
events to come in the further story.
This is how I understand the "cheating" part. It was just a "method" used by the author, a way, a"trick" of writing.
Perhaps Tolkien at a certain point understood that Gandalf as he had been up to that point would not fit in any further, so he had to be changed. The rest is only a reflection of the author's fantasy-set mind.
This is of course my opinion, but I cannot see Gandalf as any biblical character! Please!
