Yes but State Law is separate from Federal Law. Texas can't pass a law that says only patent troll-hating Texans can sit on a federal jury, no matter how friendly Texas is to business.
The state, and especially that part of the state within that federal court district, being generally friendly to one type of party or another has to do with more than state laws. It has to do with public perception, legal specializations in that court district, and more. The juries are selected from that public and local attorneys in a district known for patent trolling will likely specialize in patent trolling cases.