I disagree, there's nothing clever about it. It's a poor touch from Werner, allowing White to cover and clear the ball. Ryan decided early he was going to foul him, but there wasn't any need to. If he'd left him, there's no danger. He fouled him.
Don't think it was a poor touch by Werner, think he was cute. Didn't matter about any covering defender because he knew if he plays the ball past Ryan he can drag his leg a little and initiate contact. I don't think Ryan 'decided' he was going to foul him, he had to come and Werner only just got to the ball before him. If he had stayed on his line then Werner has a clear run and the anti Ryan brigade would be moaning at him for not coming out.