Brian, before you go asserting that someone (PB) is being untruthful, be careful of your statistics. Before you claim a PB bias towards visitors, you should explain this year's real life playoffs. The home team did not win 60% of the first two games as you assert might be normal. They did not win 50% or even 48%. The home team won only 36% of those games. So, your analysis seems to indicate a bias towards the HOME team in comparison to Real Life (48% versus 36%).

I expect your first reaction is that 5 wins and 9 losses is too few games to statistically support any conclusion. The the truth is that 74 game, or however many you used, is also too few.

Your hypothesis is that a PB visiting team will defeat an equal home team more than 50% of the time. You calculate that in 74 games, they won 52%. Your conclusion is not supported. (If you flipped a coin 100 times and it came up heads 52 times, would you conclude its a biased coin, or just that it happened to come up that way?)

Maybe someone who remembers their statistics can calculate a confidence interval.