I know I am late to this thread and maybe nobody is paying any attention to now, but I enjoy reading these type of threads and will make a few comments in case anyone in the future ends up here on a search.
He's going to go ahead and use them but if anyone else sees this thread and has input, please feel free to share it. I'm not ready to stop learning just yet.

I like the fact that I am constantly learning new and better ways to raise my backyard flock. Keeps me feeling younger.
If they smell like a forest floor that's exactly right.
That's what it should smell like. Some woods smell when freshly cut. I really like the smell fresh cut pine. But a few days outside in the air and sunshine will cut down on aroma. On the other hand, if they cut and chopped up fresh green leaves with the wood, then you might have a little composting starting, and that is a good thing. It's that composting process that smells like a forest floor to me. My wood chips, by themselves, have very little smell.
I'm probably the outlier here because I absolutely love the smell of fresh cut wood,
I'm an outlier with you, too.
It doesn't matter that they don't smell good to me because they're not for me!
If you had some smelly wood (someone mentioned fresh oak) then a few days outside in open air should take care of that problem. If what you are smelling is a forest floor, then that's what you would want for a healthy environment for your chickens. That means some composting is taking place. There are many, many benefits to composting in place including making an environment for bugs and worms to live, which the chickens will love to scratch and peck for all day!
There are other ways to cover/change the smell of your run. For example, you can add fresh cut grass clippings on top of the wood chips. The chickens will love eating some greens for a few days. In the fall, I dump all my leaves from the yard into the chicken run. My leaves don't have much of any smell, but if you had an offensive smelling run, the leaves would help solve that problem.
Eventually, the chickens will scratch and peck everything, mixing it all together, making wonderful compost for your garden. That's like black gold sitting in your vault. Thin layers of run litter, all mixed together by the chickens, should smell like a forest floor.