Might be noob question (ahead of time, even), why/when would one prefer authz/acl with Macaroons over Zanzibar? All I could gather from summaries is that, for C

Might be noob question (ahead of time, even), why/when would one prefer authz/acl with Macaroons over Zanzibar? All I could gather from summaries is that, for Cloud, Macaroons are better suited since 'decentralised'; whereas, Zanzibar appears to favour consistency with centralised architecture capable of expressing relationship graphs and permission inheritance.