A few years back now, when 777's were in favour with SQ, their SOP was to continue onto SIN should they suffer an EFATO departing PER due to the Engineering Support at home base.
And CASA approved that document?? I find that very hard to believe.
Generally speaking if you have a engine failure in a twin it's land at the nearest airport unless you have a good reason not to which is what the ATSB is getting at in their report.