Zoner, FRU switched to QNH since it was turned into a USAFs hub for Agfan war. QFE is still available though. ALA has the option to give you both. You're the master of your fate there. Surely if you request QNH you'll be assigned altitudes based on that and vice versa. Now the point here was: If you have the technical option to use QFE such as pin programming and the place only runs QFE then surely you'll make your life way easier to use it provided, of course, the operator is approved and SOPs are in place.
bb44, your so-called major FU are only to be traced back to poor standardization due to lack of technical background understanding. If you don't the option to switch to QFE, of course your GPWS is gonna go off, pressurization isn't goona work, etc. It's plain simple: one is the reference datum and the other one is the selected value. If you use one reference datum and select a value based on a different one, well a major FU is inevitable.
The bottom line is: if only QNH equipped a/c then use alt with QNH. If QFE option is installed, heights and QFE can be used. It's optional and up to the operator. Don't demonise something you don't understand.
P.S. by selecting the QFE settings on EFIS control panel one simply changes the reference datum for the target altitudes. However all relevant aircraft systems such as GPWS, FMGEC, CPC etc know that you've changed the reference datum and operate normally. Surely airbus wound't design and release QFE option to the world if it was unsafe as some claim. BTW it's stricly prohibited to use QFE settings on QNH only programmed aircraft.