We are going to hear plenty about how UDRS should have been available, and how two rank bad LBW decisions would have been overturned had it been available. The South African commentator Robin Jackman has already been lining up "key moments", three of which are umpiring decisions which have apparently favored India unduly.
The first, was Zaheer Khan's LBW. The consensus with everyone other than Zaheer Khan and Umpire Davis, is that there was definitely no inside edge. Yet, both seemed totally sure that there was. Zaheer even showed Umpire Davis the bat as soon as the ball hit his pad. We have no way of knowing what happened. I tend to agree that Zaheer didn't hit it, and at the time I thought it was extremely Out.
The second is the LBW decision against A B deVilliers. It looked Out, deVilliers was not offering a shot, the ball straightened, hit him around the knee roll. Yet, Hawkeye's prediction (not it's record of the trajectory) is to be taken as the gospel truth. Nine out of Ten umpires would have given that out. Had deVilliers offered a shot, he would have been given Not Out.
The Boucher LBW also looked good. There was some doubt as to whether it moved in enough, but once Boucher was not offering a shot, the benefit of doubt due to him diminishes extensively.
Both were marginal, but in the pre-Hawkeye era would have raised very few eyebrows. They would have marked Asad Rauf and Steve Davis out to be Out Umpires rather than Not Outers, but there's nothing wrong with being an Out Umpire.
This is how LBW has been interpreted for at least 50 years before the advent of Hawkeye. Suddenly post-Hawkeye, the issue about the batsman not offering a shot ceases to matter. I don't think this is intentional. It's just that the hawkeye's seductive certainty drags focus away from from these details.