In what way? Seems like on a small device like a watch doing something with just a bit of movement from one finger can be seen as simpler and better than needing to use more fingers and muscles to turn something bigger.
Not sure about easier. The greater surface area of a rotating dial would be welcome in many instances. And like the Apple Watch crown, there may be instances where you want to interact, but not obscure content.
The interface has multiple ways to interact as well.