This is bizarre. Biggest surprise for me is not having a spend requirement and all classes earning the same. This creates a bunch of opportunities I'm pretty sure were not intended.
I think the system will never be implemented as it is printed in the Handelsblatt (but as a few have mentioned let's see the full footnotes and terms and conditions of all the "offer')
On a personal note, my FTL just increased by 113%. It went from 30 segments every 2 years to 64. And as I was crediting mostly K,L,T fares it seems in my case I'm correctly weeded out by the new system.