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By my count of the Brooks graph, Fister got jobbed of 11 strikes; he also had 4 balls called for strikes. So net loss = 7.
Lackey, by my count, got jobbed of 6 strikes; he also had 1 ball called for a strike. So net loss = 5.
Seems to me like the problem was mostly a bad ump, not a biased one. He basically ignored strikes in the lower right quadrant of the strike zone. Fister threw there a lot more than Lackey; so he got more bad calls.
At least that's how I see it.
Although I must say, at least from watching gameday this year, the umpiring in general has seemed really bad compared to previous years. The low strikes are not getting called with any kind of consistency.