Which is a bit cumbersome given Oracle's limit on 30 characters for identifiers - but it still increases maintainability. And one of the advantages given for packages was the increase in namespace availability which is much easier with Postgres anyway.
I was wondering where the namespace thing came from. Sure, packagename_funcname I'd cumbersome but it's not exactly hard and we've been doing it in C since forever.
I'd assumed it was an issue in the opposite direction. PG identifiers being too short. But it sounds like instead it's people not realising they can do this.