Genuine question—are “tightly-packed monocultures” that are recurrently harvested optimal (from a carbon removal perspective) under some conditions? Similarly, if you inherit a mature forest, is it optimal to harvest some portion of it so that new trees can absorb carbon?
However given the context of the article and the question of replanting a clearcut in the PNW, I'm guessing the intent is to create a forest with a sustainable and vibrant ecosystem. That intent puts it at odds of the forestry practices that favors harvesting trees for economic value.
There's certainly a need for timber in modern society, but the way that's achieved doesn't create a forest or an environment that fosters a well-balanced ecological system.