Well the Laurion artifact is disappointing because of the amount of work required to get it, mostly the risk of constant death. So the game overhypes it up to being this super important thing, and then feels not worth the effort.
So if you cut out a layer of mining, then it wouldn't be over-hyped.
Its like how Hello Games overhyped NMS when it launched. If they had kept more quiet on what it could or couldn't do, then the game would have done better at launch.
The same is here, where you have to dig through layer after layer, and you get hyped up to think its this super awesome reward. 25% is powerful, but not at the level of work required to get it.
So my advice is to reduce one layer of mining to it. Keep the thirst and oxygen layers, as they build tension, but get rid of one of the layers that just pads the duration it takes to mine through it. Less work = less expectation of a great reward.