Hookriel has been around before this show even, before Hook made his first appearance on the show so in my case I view it as more of a fan-what-if thing right now. I think most people don’t yet think it’s what the writers intend, so much as what fans hope they might consider doing.
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“If I had a world of my own, everything would be nonsense. Nothing would be what it is, because everything would be what it isn't. And contrary wise, what is, it wouldn't be. And what it wouldn't be, it would. You see?” -- Lewis Carroll, Alice's Adventures in Wonderland & Through the Looking-Glass