The SH award does not contain the full CAO 48E limits. TOD limits for augmented crew are not contained in the award.
TOD limits in the award for 2 pilot ops are generally more restrictive than the CAO 48E.
The complete CAO 48E is contained in the FAM and has the limits for augmented crew (22hrs etc)
The way I understand it is, if there are no specific limitations within the award (e.g. augmented crew), then the CAO48E (as per the FAM) applies.
Not sure of the A330 example, perhaps there were some specific limitations for the A330, or simply some varied interpretations of how CAO 48E applied.