I don't mind the gender swap for Silver Surfer, but it makes zero logical sense in terms of the character's history. The 'new' SS is Shella Bal, who is Norrin Radd's love. Norrin is the SS we all know who falls for the people of Earth and quotes Shakespeare. Shella is his lover who was imprisoned by Mephisto in Hell, and the entire reason Norrin became the SS in the first place was to save his homeworld and Shella. Even if for whatever reason the movie decided to reverse Shella and Norrin's entire character history, it still makes zero sense. They are completely rewriting Galactus' history and reasoning, and the entire purpose SS exists, and that I do not approve of or understand.