Thin isn't how I would describe any iteration of Faded Spade cards lol.
I like how they look, yes. But from each of their three runs of card stock, there has been a very major issue with each of them. There's a reason that the Borgata and other major casinos went back to Kem just weeks after putting Faded Spade cards on their tables.
Do I think they will be up there one day with the card giants of the world like Cartamundi or Angel in terms of quality? Yes, but it's going to take a while. They're still pretty new to the card game. If the quality of the product matches their marketing prowess, they'll be there sooner rather than later.