I usually prefer waiting a bit before passing judgment but in this case, I think it's clear rewards go nerfed. Time will tell by how much. We can get way fewer chests than before. Yes, the chests didn't always contain cards but they could contain SPS or merits too, which could be even more valuable, depending on the amount. The nice part is never having to see a single potion ever again. I don't think the cost increase reflects just the % that went to potions. Sure, the SPS that was gained in chests went to the battle rewards, but it still doesn't seem to match.

It's nice to be able to choose which chests you get or maybe you can focus on merits if that's what you need. But I also expected more choices. I have all commons maxed and most rares too. I don't have most epics or legendaries maxed out. I don't want to spend the whole day fighting for some Glint that allows me to buy 1 or 2 chests and get some commons, which is what's most likely to happen with those percentages. This is the later part of these reward cards, we should be able to have a better shot and getting exactly what we need.

Let's not forget the removal of the focus. That's another dent in the rewards. They should have given at least a 1,1x multiplier to SPS and Glint rewards to account for that.

Overall, less rewards, and less excitement because you'll get to oopen fewer chests. The upside is not seeing a single potion ever again and being able to use useless extra copies for something.