The fuel leak is a big enough worry in itself, but how does a major international carrier send out a brand new aeroplane without doing all the checks and balances to make sure it comes home?
They don't just send it out.
What do you think? That QF just picked it up from the factory and sent it straight to BOM?
You should know better than that. The aircraft has been in the country for a few weeks now flying around the place.
In any case, it is back in the air now.
One pissed of PAX out of 250? That happens on every flight.