You touch on a very deep hermeneutic issue and I basically agree with you.
It applies to modern Catholicism itself with its theories of sacraments and Pope and bishops etc etc which is far removed from a pious reading of SS.
As time goes by and the contradictions in the alleged simplicity of the old days and their reported events and teachings come to the fore…and other cultures with their different beliefs get assimilated into the same ongoing narrative…well the narrative gets more and more complicated doesnt it?
For everything to be held together in a harmonious way we have to abstract and rationalise down to common principles that do get somewhat philosophic and dry.
This is exactly what has happened in this discussion.
We start with our childish physical understandings of angels as being material even though spiritual, with wings to fly.
With adult minds we reason and see the contradictions in such impressions.
But then, provided we have a grasp of the philosophy needed to reconcile these contradictions, we can still go back to our physical images…because we know what is truly meant…it is analogy, metaphor, poetry, “myth” (in the best sense of that word), symbol.
Actually children know implicitly that wings does not mean angels must have physical feathers. They know it can be a symbol of the very opposite…freedom from location and physicality.
And if an angel were to reveal its existence to us in our imagination how else could it communicate its essential nature but by the means of symbolic use of the physical! As you so rightly note, even in our most astract ideas we always have an associated physical image in mind. It is impossible not to do so.