I read it a different way, as in... we think you might also be a member of another FF programme, but you can still fly QF and get the flights credited to your other programme (if you want to favour that programme over QF FF). I thought they were trying to get you to fly more with QF.
My thought as well. Almost the exact same wording- it might even
be the exact same wording- appears in
Australian Way each month next to the route map at the back. I figured it was there to encourage members of other programs to choose QF when flying those routes.
To add another data point: that paragraph wasn't included in my statement today.