I don't believe Grant is upset with mush mouthed Rob for his game play. He's probably more bothered by mush mouth constantly referring to his tribe as idiots behind their backs. That has nothing to do with game play whatsoever so mush mouth can sanctimoniously talk about it being just a game but his bad-mouthing of the others is really telling of his true personality.
For a split-second when Phil threw his undies into the fire I thought just maybe he was to some extent partially sane. I was waiting for him at final Tribal Council to stand up, toss his cape and headdress into the fire and announce how his insanity was all a ruse. But that was not to be, instead he starts telling jury members not to vote for him.
Survivor needs to change their blueprint. Pluck just about anyone from any recent season and drop them into another one and watch the exact same outcome. It's beyond stale. I find it impossible that of all who apply to the show they can't find anyone interesting enough that they have to bring back a has-been or a xerox copy of a previous contestant.