If lutherans have a hierarchy, it is a categorically lutheran hierarchy, not a categorically protestant one, because it applies to lutheranism and not protestantism as a whole. If baptists have a hierarchy, it is categorically baptist, not categorically protestant, because it applies to baptists and not protestantism as a whole, etc. Of course you can't say "all protestants are trannies" because that's patently absurd on it's face. "Protestant" refers to a broad category of beliefs whose chief overlapping characteristic is simply "not being catholic" whereas "catholicism" refers to adherence to a specific institution.