Incredible fare, and for those of us in BR at the time, good for a weekend away! But W doesn't even appear in the QR-section of my BD mileage chart, and it gives only 50% on M&M and QR's own programme. And non-status miles outside QR. So, for me, not worth the aching bum
Others may fare better!
I'd be interested to hear how the overnight at Doha works out - the airline may, or may not, put passengers in a transit hotel. At least the airline can (or could) arrange a free visa for up to 24H connections.