Adding a brand used to mean opening team settings and granting access again to the people who already run the account. You don't have to anymore: owners and admins can open a new brand the moment it is added. Other team members keep the brand-by-brand access they have today.
CHANGELOG
Owners and admins see every brand
Account owners and admins now have full access to every brand in their account, including brands added later. New team members start as editors.