There's no doubt at this point that using PKS in Photoshop to handle the capture phase is preferred. But when processing a large volume in LR I think the capture sharpen will do. When I get to the point where I'm going to take a shot into PS for more intense processing I generally back off and redo the sharpening with PKS.
Eleanor speaks for us all, I think, in hoping for some integration of PKS with LR. I'm sure Jeff has something in the works!??!