Unfortunately OoC doesn't have any stats for the 2 Christmas weeks (slacker!), but my quick calculation shows generation time for those weeks were 0.96 and 1.01. Slush's luck over the last couple months is just a bit better than neutral.
Yes what is more stupid is that people don't understand what the pool stats mean and then say "Slush this is your fault we had long blocks" Long blocks are expected, someone who thinks otherwise really has no idea what they are talking about.