I'm fascinated by their argument that the court is fair because plaintiff and defendant wins were about even now. I know nothing about the caseload, but does that make any sense?

If his district is seen as plaintiff-friendly, then those with the weakest cases would have the strongest incentive to file there. And I would expect patent trolls to be high-volume filers because their targets would be more likely to flip the bird during negotiations.

So I wouldn't a priori expect 50/50 outcomes to be a sign of fairness. Depending on caseload, I'd expect that as a sign of pro-plaintiff bias. If I'm a troll filing a lot of claims, 50/50 outcomes sounds like a reason to file as many as possible.