I'd have to agree with you on that one.
I can make a very long list of ways that Carter screwed the pooch during his presidency, but the unforeseen problems of the rescue mission involved the sort of thing that can happen on any military mission, and I didn't see Carter as specifically to blame.
In fact, at the time, I gave him a lot of credit for at least giving it a shot. If it had worked, he would have been a hero.
Whether he should have then escalated things militarily is a whole other question. It's plain nobody on the planet was the least bit scared of him.