It rather depends on how you define the word bushcraft. If you're backpacking into the backcountry then it goes without saying that you're not going to carry a cast camp oven. BTW these are kitchen pots not camp ovens, a passing similarity perhaps but not interchangeable.
On the other hand if your going out into the bush say in a vehicle and you'll be cooking using fire not stoves, and there is a few of you then a good camp oven is invaluable.
I have a couple of cast iron ones and recently took delivery of some spun steel ones from southern metal spinners in OZ. These are much lighter and excellent quality, I will try for a review before I go back to work at the end of January
Stephen