A seamless transition to new costumes that don't resemble the characters in any way shape or form. It's not character integrity if the new look has nothing to do with the character design, even if the rollout was seamless.
For years, fuzzy Hook met in Adventureland while an entirely different face hybrid Hook costume was used in Dreamalong. Same with Smee. This disturbed no one apparently.
Since most guests couldn't tell old Mickey head from new Mickey head if their lives depended on it, I'm sure no one is worried about using them in MRFF while the rest of the park doesn't have them yet.
Character integrity means not having Cinderella meets advertised 50 yards from the restaurant that uses her name, where it's advertised that she's there all day. In the name of capacity, character integrity has taken a nosedive.