You can walk around your battle tower in Divinity 2. I don't see how this can't be achieved in DC.
In all fairness, in Divinity 2 most of the fighting was done in human form anyway.
It looks like in Dragon Commander, most if not all of the fighting will be done in dragon form. Creating a seperate, customizable human form that only walks around on the Raven could therefore be considered an unnecessary, perhaps even a somewhat extravagant, expense. If you think of the fighting as the most important part of the gameplay, anyway.
That´s not a line of arguing I agree with, personally, but, you know, I guess it´s not completely invalid.