I think its fine. He probably won't push too hard in Cincinnati and will try to peak for USO.This is a little bit worrisome. Novak didn't win a tournament when he applied for doubles in ages. Does this mean he just needed some time on court or that he doesn't have intention of going all out in Cinci?
He said multiple times that most important thing are Slams in this phase of his career and that he won't go all out at Masters and other tournaments like before.