I did read the linked paper. Again, complete propaganda from a leftie propaganda source.
Which of the tests do you consider inappropriate:
1) simulating the number of seats won based on voter participation and similarities to districts nationwide, and observing whether there is a discrepancy between seating results and simulation results
2) observing whether one party wins a lot more lopsided victory while one wins almost all close elections
3) observing whether there are an unusual number of districts with the same partisan vote share or very little difference between mean and median vote shares.