Feanor Self-Important?

[The Saucepan Man]

... a ship doesn't break just because you use it to ferry some people over.

Who's to say that the ships, or some of them, would not have been destroyed? The Noldor were planning on leaving Valinor against the will of the Valar and sailing in chase of a pretty dangerous Dark Lord, the most powerful of the Valar no less, and a fearsome and gigantic spider with a serious over-eating problem. That seems to me to be a fairly risky maritime undertaking.

Olwe had no more idea than we do as to what might happen to his precious ships if he permitted them to be used to ferry the Noldor across to ME.

No, I am still firmly of the view that he was well within his rights to refuse to allow them to be used.