tu'HomI'raH Duj doesn't necessarily imply that the ship is useless. It could apply to a ship carrying useless things, or a ship owned by a useless person (vIqawchu'chugh, the use on the Klingon CD shows tu'HomI'raH can be used as an insult).

(tu'HomI'raH also seems like it might be a stronger sentiment than lI'be', since it's a very long root word, and Klingons tend towards conciseness. Even lI'be'wI' would be shorter. I feel like something's uselessness would have to be pretty noteworthy to warrant all those syllables.)