What part was not a shock mat? I have to agree with you though as I didn't think it was going to go our way either. The trouble is that the way Lukes trial went based completely on circumstantial evidence then it was always going to be hard. In most cases of MoJ's its concrete evidence,witness testimony or procedural manipulations that get the verdict over turned and of course there were none of those in this case anyway.
On the other hand we have an independent body having done part of the police's job in investigating and came up with more evidence that could if it had been available gone a very long way to finding Luke innocent, the fact that it may lead to another suspect is not what the SCCRC are there fore so again not a surprise.