I understand what is written down! I call it a lie. First it is impossible to find that r>0 but my expirince is different. 8 1st class, 40 business seats all were empty at booing and I am 67 with RPU even with the fact that 8 ware moved to fist. And I got the fare as upgradable +RPU at the time of booking with complexity empty plane. But instead of confirmation was put on wait list. I guess 40+ people decided to use Global upgrade on this flight. It is possible but I find it hard to believe.