I don't know why people think Wyll should be Hexblade simply because he has a title with "blade"
I do. It's what he's known for.
I don't care if he's a hexblade or if Larian changes the pact of the blade into something resembling the hexblade.
he has a blade weapon but that is not his warlock power learned from his patron. he never mentioned Mizora teaching him how to use a rapier, but he does mention the fiendish ability she taught him.