When the debate is televised and/or available as a video on the site, you can make up your own mind as to why the outcome was as it was and what lessons can be learned about what the theists did wrong, what the atheists did right, and what both sides could have done better. There are written versions of the speeches now available on the ABC Religion and Ethics Portal, but of course they may not exactly match what was said on the night and might not give a very good picture of the cut and thrust of the actual debate. If you read them, try the actual order of delivery on the night: Longstaff (introduction), Jensen, Pataki, Rowland, Caro, Stephens, Blackford.
In any event, the figure for people for supporting the motion that "Atheists are wrong" actually dropped by 0.5 per cent after the debate. The figure for people opposing the motion increased by 10.0 per cent:
Pre-debate poll Post-debate poll For: 28.5% 28% Undecided: 15.5% 6% Against: 56% 66%