It is, but the whole Neal arc has been anyway, for anyone who liked him at all.
They’re basically doing the story I half expected and dearly hoped they’d do at the end of S3…but for someone else’s benefit. It would have made so much more sense for everyone to go after Neal than it does for Hook, because blood…nothing against Hook, but he still, after all this time together, doesn’t have the same deep connection to the other mains that Neal does. In his relationships to them he’s still almost as periphery as Belle or Robin–very important to one person, almost irrelevant to the others (though he does have that mortal enemy thing going with Rumple–but that’s not a reason to go to hell and back for someone).
(In fact, of the group, Belle is probably the most likely besides Emma to actually want to go to the underworld to save Hook–they’re actually friends now. But noooooooooo…)
Keeper of Belle's Gold magic, sand dollar, cloaks, purple FTL outfit, spell scroll, library key, copy of Romeo and Juliet, and cry-muffling pillow, Rumple's doll, overcoat, and strength, and The Timeline. My spreadsheet: https://drive.google.com/file/d/0B6r8CySCCWd9R0RUNm4xR3RhMEU/view?usp=sharing