It seems quite significant to me that all those who actually do the hard research come away as believers and all those who sit on their backsides thinking they are being scientific by ignoring their findings, refuse to.
Parnia's position is that consciousness continues (for a period) after the brain has stopped working based on where we are now with the research. Two years ago he said that he doesn't believe we become annihilated and that we are re-united with deceased loved ones etc. But you won't often hear him say that as it invoked savage criticism from the "death is the end and don't you dare say it's not, crowd"
The results were disappointing only because the OBE was not able to tested properly. No one had an OBE in research area.