Yes and no. It would be nice if the producers stay true to the source material but at the same time, they're doing it for the money and not necessarily for the fans.
As for Ghost in the Shell, I think they are able to get away with using a Caucasian actress due to the nature of the lore. Motoko herself is just using a "suit"
"You must gather your party before venturing forth"
"Go for the eyes Boo! Go for the eyes!"