Vlad has certainly been fortunate with his HR/FB rate. As of this morning it’s only 6.7% (elite but likely unsustainable). And a .206 BABIP. He never has been much of a bat misser, except for a brief stint at AAA earlier this season.
Still, he’s worth the effort to work with Driveline and DJ and see what they can add. He seems to have the control and poise to pitch well. Agree needs an uptick in the stuff department.
Edit: I see some of these points are in the Fangraphs article posted by RedEye above.