Said Lutherans probably explain it like follows:
“Lutherans don’t accept the catholic assertion that Jesus intended to found a monarchical church. We understand the ‘catholic church’ referred to in the creeds as the worldwide believers in Jesus and assert that the Roman Catholic church has for centuries attempted to arrogate that title to themselves alone. We reject this arrogant and unfounded assumption and claim our place as believers in Christ and members of his one, holy, catholic and apostolic church.”
They almost have to assert something like this even though the actual history of Christianity prior to Luther is a little bit, umm, inconvenient for this claim.