As far as I'm concerned, Palin not being at the convention makes a better statement, than her being there in the form of an empty gesture.Dan makes a compelling case. His thinking and Sarah Palin's may be on the same wavelength here.
The GOP establishment has spent 3 years telling Palin - and in many ways, us (speaking as a conservative,) we aren't welcome unless we behave - i.e. compromise our principles to the point where they aren't principles any longer, but merely political conveniences. The heck with that.
I trust Palin to get behind Romney/Ryan to do everything she can do to help him get elected. She did that in the Facebook post cited, as she hammered Obama. I intend to do much the same thing, support Romney/Ryan every way I can because defeating Barack Obama is the right thing to do for America and for conservatism.
Still, call it the Tea Party, the grassroots, or simply more genuine conservatives, hell, it's not a rift - there's a damned #War going on for the future of the Republican Party. And I - and I'm sure Palin - are capable of doing the right thing as best we can in and until November without some slight amount of window dressing to pretend otherwise.
We may very well elect Romney/Ryan in November. I will be ecstatic. But once we hit January and so on, make no mistake, it's still #GameOn! when it comes to taking on the GOP establishment that hasn't been doing enough of the right thing for America for decades, now.