Fully understand this and yes Alliance in this case is not owned by QF but they are operated AS QF metal flights - some of the E190's are even painted in QF livery iirc, and QF have ordered more per the agreement.
There was an issue when the flights to/from ASP were first introduced what a year or so back and they weren't crediting properly but that was resolved.
Personally I am 100% confident on this despite the wording above..
However, I absolutely understand being risk adverse, specially with all the little "gotchyas" with such things. I feel certain that QF consider QF19xx flights operated on behalf of QF by Alliance are considered QF "metal" ("on behalf of" as opposed to "codeshare with"). Remember you're flying on QF flight 19xx to wherever not Alliance flight 1234, sold as QF 19xx.