Thanks for the kind words! :) Yeah, 90% impossible doesn't seem right on the breezy mode -- just to clarify, are you utilizing the 4 top right slots to also temporarily store single cards that are in the way? Without doing that, it would definitely be way to hard to solve.
The cards are shuffled completely randomly atm, so it's very possible be dealt an impossible hand, especially on harder difficulties. That's a good idea to have an option to skew the shuffling, we can add that in the post-jam update but we'll have to wait until the ratings for LD are over in about 2 weeks.