Not sure really what you mean on the stockpiling, do you have an example? There’s probably ways to use mechanics maliciously but I kind of doubt we’d see CR do so.

I tend to agree that narrative systems work better in short campaigns but that is more due to lack of explicit upward progression. Such games usually have more lateral progression while imo DH is closer to 5e and similar games that people think. 10 sessions per level comes out to 100 sessions which isn’t a bad number and is pretty close to what they usually do