I see your point. As an author I would think I’m misdirecting my readers by doing that though; “Voldemort has the same deformity as in canon? He’s been playing with Horcruxes!” is the reasoning I would expect from them. Which is why I would, say, remove Quirrell’s turban as soon as my plot had Voldemort not on the back of Quirrell’s head.
I see your point. As an author I would think I’m misdirecting my readers by doing that though; “Voldemort has the same deformity as in canon? He’s been playing with Horcruxes!” is the reasoning I would expect from them. Which is why I would, say, remove Quirrell’s turban as soon as my plot had Voldemort not on the back of Quirrell’s head.