Normal Identity Drawback and Appearance

[Cubismo]

Just wondering whether the Normal Identity drawback allows you to assume a superpowered form that's unrecognizable from your normal identity, yet doesn't require you get to Disguise or Morph? For example, would Billy Batson need Morph (Single Appearance) or even Growth on his list of powers to show that his Captain Marvel form is different from his normal child body?

[EternalPhoenix]

The other most common use of Normal Identity is for Battlesuit characters. Nobody would know Tony Stark was Iron Man if he didn't tell them. Genre convention, really. Normal Identity just looks different from the superheroic identity.