I don’t get if your “Thanks Steven” is sarcastic of something 
Anyway, as said before on this forum (not just in this thread), this menu is indeed made backward, and this is why we want to fix it. Personally, I ignore the reasons behind the current filtering menu, it seems to date a few years back and the people who could answer this question do not work at DxO anymore… Basically, I just have the same info as you. The only thing I know is that this feature is a huge pain for our users and a major problem for a photographer’s workflow.