QF Engineering will be supporting the 330 ops as is now the case, so, from this point of view the status quo is maintained, if your maintenance is of the required (already proven) standard the rest is not really rocket science is it?
The only thing that will affect ETOPS is a system failure enroute and it does not take much to work out whether to proceed or not from the point of failure does it? Most crews would I am sure not struggle to much with this decision.
Think maybe this is straw clutching at its finest - although, one would be asking the question why Australian had to prove its 180 ability (and only just got it prior to its demise) with full QF engineering support all along and using QF crews?