Well I agree that there are too many Talts in the cubes. Imo, it should only be 50% Talt tops, so if you do 3 runs you have a good chance that at least one doesn’t contain Talt.
I mean the ultimate recipe/gear doesn’t need to drop frequently, but you could but a bunch of other equips or recipes in that drop to 10% like the card, so you occasionally feel the “Yay, something I can sell on market for more than 5000 silver” feeling at least something.
But with recipes you also need to be careful, like how Beetleback Recipe is worthless because getting the incredients is harder than getting the recipe.