Unfortunately this team has never really understood unintended consequences. But I will say, they eventually find their way. Or at least it seems like they are about to and then they detour into another pit like this one lol
I've been arguing for the 1 dec minimum for over a year and they always said that's price fixing. It's an argument that never made sense to me because until recently, .1 dec was the technical floor so how were they not already price fixing?
So many of these cards it doesn't even matter if you combine them. The CL rewards cards are the extreme example here. They will often have hundreds of unrented maxed level cards for 2-3 dec. They have no purpose because if you have a diamond/champion deck, you almost certain have those cards since they are the cheapest.
But even if a bunch of people rent their way to diamond/champion, they'd run out of other cards to make a viable deck and there would still be hundreds of copies of those reward cards on the market. No one is going to make it to diamond with just those cards so they are useless. Combining them at this point just further lowers the value on of those already maxed and doesn't make a dent in the bottom of the market.
Imbalances are catching up. Hopefully land is the sink for those cards they are saying it will be. I have my doubts about that too. We'll see.