Very much agreed.At the present time, higher-level stones are too rare and lower-level stones are too abundant, so it's a panoply of annoyances.
The idea of being able to further upgrade favored cards via these various systems (ascension, traits, etc.) is great, but the degree of actual control the player has over whether they're able to do so is much too low. There's really just not much you can do but hope if you're trying to grab runics.
I'd like to see an upgrade system and a sidegrade system, exchanging so many of one color for fewer of another.
Also, if we ever do get an upgrade system for traitstones, they should be removed from chests. Nothing is worse than opening gem or honor chests and getting....a rock.