Yeah, even if there was a logic there that was apparent to the characters it certainly wasn’t communicated to the readers.
For example, when someone at the Council of Elrond made the reasonable suggestion to hurl the One Ring to the depths of the ocean, Gandalf actually explained why that seemingly obvious solution wouldn’t work (Sauron would just send a Kraken to get it or some shit). It would have taken all of two sentences to add another explanation for why Eagle transport to Mordor was a no-go.
