Is changing the order of sectors on a OWE considered re-routing (ie same city pairs but different order)?

My remaining routing on OWE ticket is:

LAX-JFK-LHR-RIX-LHR-DXB-LHR-NRT-HKG-MEL

If I wanted to do the LHR-DXB-LHR sectors before the LHR-RIX-LHR sectors (in effect just change the dates) is this considered a re-routing? To me it is not as I already have the flight coupons in my ticket and it's simply the order in which I use them.

Before calling QF just wanted to sure up my arguement.

Thanks