I believe that the definition of the levels for the collection power must be a tough decision to take. Economically speaking it makes a lot of sense although it will make some players unhappy. There are more and more people reaching champions league with very little skin in the game and in the long run it can't be sustainable if they all win 80, 120 or even 150 rewards per season.
I welcome these changes and I believe that thanks to the rewards we can all grow and increase our collection power over time. This will also give a new dynamic to the renting market. Renting cards, like gold foil cards, will help us climb the laders without much investment.