The point I am making is Tolkien frequently uses them as a plot device, which is undeniable. The rest of what you have said is pure fan head-canon. For what it’s worth, I like the in-world explanation.
I also found Celebrimbor not being told who Halbrand is quite ridiculous to be honest, I just don’t see a point in someone watching something just so they can bitch about it. There’s far worse Telly out there than this; it’s not Tolkien, don’t treat it like it is and you won’t be disappointed
The point I am making is Tolkien frequently uses them as a plot device, which is undeniable. The rest of what you have said is pure fan head-canon. For what it’s worth, I like the in-world explanation.
I also found Celebrimbor not being told who Halbrand is quite ridiculous to be honest, I just don’t see a point in someone watching something just so they can bitch about it. There’s far worse Telly out there than this; it’s not Tolkien, don’t treat it like it is and you won’t be disappointed
Wrong - please read Unfinished Tales:
Gwaihir and Landroval, the children of Thorondor were explicitly told by Eonwe (and by extension, Manwe), to not interfere with the events of Middle Earth and that it was not their responsibility, and that beings such as themselves intervening actively would lead to terrible consequences.
The only reason Eagles assist the order of the Istar is because Gandalf rescused Gwaihir and tended to his wounds when Gwaihir was injured - thus Gwaihir felt a notion of debt.
1) Gwaihir rescuing Gandalf was pure luck. He was actually on his way to Isengard because the Istar had asked him to fly over the skies and report Orc movements and only when he arrived did he see Gandalf trapped and battered, hence he rescued him.
2) The eagles did not risk "Arrows and Fell beasts" after the ring was destroyed because, and I paraphrase, after Sauron's dominion came to an end, the Orcs collectively lost their minds and just scattered and ran as they had no will nor purpose and did not understand what they were doing there.
3) The eagles not being used was much like the reason Glorfindel was not used. A flock of Eagles rocking up, sends about a billion alarm bells for Sauron who would just place orcs in the forge and intercept the Eagles. Not to mention a few other things such as
a) As mentioned in 1), Manwe forbid the Eagles from interfering.
b) Mount doom wasn't some open crater that you can fly over, lob the ring in and job done. It's explicitly described in HoME Volume VI and Volume VIII that the only place it could be destroyed was the part of mount doom where Sauron had infused his magic into, that he carved into the cracks of Mount Doom. Even if there was a small crater at the top to lob the ring into, it wouldn't be destroyed that way. Sauron had actually made a "forge" of sorts in that specific crack, hence there was building infrastructure leading into it.
c) Which means the Eagles would have to land, drop Frodo off and pray to whatever heavens that Sauron just decided to ignore the eagles and no orcs were at the forge.