Personally I think that's fantastic news for Troy, he's getting the best bike in GP, admittedly probably not the top spec, so should do OK.
As for comparing him to Edwards this year, well didn't Edwards get a 2nd at Donny? Didn't he finish pretty high up the order?
My only worry is if Troy can't finish high up, or at least ahead of Chucca, then his GP days might well be numbered