Oden was targeting orochi, a literal fodder character. This along with the fact that there was no visible hardening means that he likely just didn’t use haki.
but given that bartolomeo only has a 200 mil bounty as well as our basic understanding of how Haki works, there’s no reason why haki shouldn’t break barriers
but given that bartolomeo only has a 200 mil bounty as well as our basic understanding of how Haki works, there’s no reason why haki shouldn’t break barriers