I would say this was Roger's preferred result. While it is no given that he'll get past Goffin, to him Cilic is a known quantity while he might benefit from feeling out Djokovic before the USO.
That said, I agree with the view that the tour--especially Fedal--should be concerned if Novak finds his best form. While we never really got to see prime Novak vs. prime Roger, prime Novak usually beats post-prime Roger and prime Rafa. And of course if Novak resurges, it may delay the ascendancy of NextGen to the top.
The USO is turning out to be a very important tournament that may really set the stage for the next year or two, and greatly impact historical records. For instance...
1. If Rafa wins it, he's only two behind Roger, will be very hungry for his second AO and potentially able to tie Roger at RG next year.
2. If Roger wins it, he probably safely distances himself enough to hold the Slam lead, and can put the cherry on top in AO or Wimbledon next year.
3. If Novak wins it, it is one less opportunity for Fedal and all of a sudden he's only three behind Rafa and is the favorite to win AO, his best tournament.
4. If a NextGenner wins it, all of a sudden the door is blown open and anything could happen going forward.
5. If one of LostGe...oh, nevermind.
But who knows...