Really, it's more like how Saavik sometimes looks like Kirstie Alley and other times like Robin Curtis.
That’s different. Recasting is completely normal. Happens all the time. It doesn’t change the essence of the character.
April, OTOH, is a whole ‘nother thing. He can’t be both white and black. It’s one or the other. You have to pick one. And since SNW firmly established April as a black man (live action always takes precedence) then TAS must be wrong. And therefore - at least in this case - not canon.
Hell, even James R. Kirk can be explained. This can’t.
Edit: Don’t even mention James Bond. Not only is it just another example of recasting, but each new Bond is a reboot anyway (otherwise he’d be a hundred years old by now).
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