The Bond recasting is an interesting one because it went from, as you say, a total freak out over the role being recast to something that fans just expect after the actor does 4-5 films. I think sometimes it’s just about finding the right replacement. Lazenby wasn’t it (IMO) and I guess even he thought that since he dropped out after one film. But Roger Moore worked. Dalton wasn’t as much of a hit with people (I still think he was underrated) but Brosnan worked fairly well until the invisible car movie. And Craig has overall been amazing and his films have been popular but I remember all the negative crap by some very vocal A-holes online when he was cast (I’m not talking about people who simply didn’t care for the casting; I’m talking about people who made a website where they compared his face to that of a Neanderthal).
Anyway, it’s just kind of fascinating how something went from a role that should never be recast to a thing that Brits regularly take bets on.