Just as well we've still got a rather old white guy with grey hair who looked like he'd just stepped off the set of Scrooge where he played the main character then.
It never fails to amuse me that people complain about a character changing in a series where one of it's primary defining features is that the main character has changed in almost every single aspect over the years, from simple things like hair colour, to age, personality*, height, weight etc.
*And he's run pretty much the full range of personalities including at times quite a callous seeming one, to one that cares massively, from one who'd do almost anything to avoid killing, to someone who IIRC consigned millions/billions of sentients to death or a fate worse than death.