What impressed me was that the boyfriends managed to do what Boston Rob couldn't - bring an element of Survivor on the show and win.
Mind you it took a rather suspect "return to the gate" pickup for Rob and Amber to lose, but nevertheless, they lost.
With that said, I'm ok with not seeing large alliances on the show again. I will allow that this was something of an outlier, in that the four strongest teams happened to ally with one another, but it did suck some of the fun out of things.