Wade and Bosh played awful and the Heat were in it to the end. I don't quite see why people think they're in any way overmatched.
Obviously Wade can't have many games like that if the Heat are going to win anything. This whole falling asleep until the 4th quarter act has gotta stop.....you can't expect to shut down the Thunder late in the game like they did the Pacers and Celtics. But overall I think they were fine. Ibaka and Perkins had no real impact on the game and the Thunder were doing pretty much what the Heat wanted them to on the offensive end. They just hit the shots, and if Westbrook is going to hit the long jumper I think you just tip your hat and move on to the next game.
LBJ and Durant cancel each other out to some degree - though Durant's skill set is much better for his supporting group than James' skill set is for his own. Aside from that, though, the Thunder have more talent all over the floor, and their talent compliments itself SO much better than the talent of Miami. We're getting back to the issues I said Miami would have when they first put the team together. LBJ and Wade can't both be at their best, because to be at their best, they require the ball in their hands. There's only one ball. Durant and Harden are both knock-down shooters who are threats without the ball. Westbrook is a better shooter than Wade or James. Each of the three can win in isolation or screen and roll situations, and each can spot up. They play off of each other. James and Wade take turns. Bosh has the skill set to compliment both Wade and James, but that's one of the three, and they're paying max money to all three, so the rest of the roster suffers. They lack size and depth inside. They lack depth and dynamic play (outside of Wade and James of course) from outside positions. James came to Miami so that he wouldn't have to do everything. Guess what? He has to do everything. He's their best defensive player, their best passer, their best ball handler, and their best scorer. OKC's best scorer is Durant; their best ball handler is Westbrook; their best defensive players are Ibaka, Sefolosha, and Perkins; and they have Harden coming off the bench to add scoring and/or ball handling responsibilities as needed. Oh, and he only had five points last night. Westbrook and Harden are both better players - at this point - than Wade is. Ibaka, Perkins, Collison make for a much better front line than Bosh and Haslem. Miami is in serious trouble, and they were before the series started. There are two ways OKC loses a game in this series: their youth shows, and/or LBJ puts in a historic performance. Probably a combination. There is only one way Miami wins this series: OKC falls apart. The Heat weren't built as well as the Thunder. It's a little surprising that OKC is putting it together so soon (considering their age), but it looks like there's no stopping them.