While I understand the value of simplified code, this sacrifices something that could be a competitive advantage over other S3 providers for stuff like cheap snapshots. Though, if this is something that no customer would actually want, then, I guess, it’s a good idea.
(BTW, some time after that message I got a reply from that guy basically stating that he no longer works at the company that would benefit from atomic snapshots. :shrug: maybe next time…)