Yes. No. It all goes back to providing the right conditions. If you have heat, provide enough moisture, and not too much, then, yes, it works. At this time of year most people have weather that is too cold, at least at times, or their ground is frozen, or too wet from too much rain, etc. And many of these things are not controllable due to the vagaries of the weather. There are many ways to root cuttings, as long as you control the basic requirements. It is a "principles" thing, not a "recipe" thing.