This is a great example of what I would call the “modern” swing, which incorporates restricted lower body movement in the backswing, plenty of both lateral and rotational movement in the forward swing, and a “drive/hold” release pattern, what I would previously term a “sustained” impact, where the right wrist stays bent well past impact as the clubface closes, causing the shaft to stay in line with the left arm until the hands move past the right leg in the follow through.