I always find Mumsnet to be a bit of a window to another world, and this is another example, for me.
I don't think purposely saying things that are very deliberately designed to be hurtful to someone you love, is normal.
It's not normal to me, anyway. I didn't hear that growing up. And I would hate to argue like that with my DH, or indeed anyone I liked.
Your husband said that - probably not because he meant it (so, from that perspective, you might as well move on from it) - but because he wanted to hurt you.
So while you can probably move on from the specific comment, you will understandably struggle to move on from the intent behind the comment. Your DH wanted to hurt you, cause you pain. He nailed it, didn't he?
Can you try to change your mode of arguing, by example?
Recognise that you're about to blow, and walk away? Tell your DH that this is what you're going to be doing in future, so that he doesn't just thinking you're storming off, and so will follow you, to keep pressing your buttons.
I don't think continuing with this is something that contributes to a loving, supportive, mutually satisfying long-term relationship.