>"A series of choices made when the idea that there would ever be more than two regions, leave them unfortunately stuck having to tie regions together to a limited degree (bucket names are global)."
Could you elaborate on those choices? Also what do you mean by they're "stuck having to tie regions together"?
The main thing is that bucket namespace is global. There is only one bucket "foo" worldwide. That means that every bucket mutation event (e.g. bucket deletion or creation) requires co-ordination between regions. When that big us-east-1 region outage occurred a year or so back every other region worked fine except for bucket mutations.
Could you elaborate on those choices? Also what do you mean by they're "stuck having to tie regions together"?