well considering the fact that a significant portion are overturned by a higher authority I think the argument has proven merit.
per Wikipedia
Rate of overturned decisions[edit]
Some argue the court's rulings are reversed by the Supreme Court at a higher rate than other courts.
From 1999 to 2008, of the 0.151% of Ninth Circuit Court rulings that were reviewed by the Supreme Court, 20% were affirmed, 19% were vacated, and
61% were reversed; the median reversal rate for all federal appellate courts was
68.29% for the same period.
[6] From 2010 to 2015, of the cases it accepted to review, the Supreme Court reversed around 79 percent of the cases from the Ninth Circuit, ranking its reversal rate third among the circuits; the median
reversal rate for all federal circuits for the same time period was around 70 percent.
[7]
Some argue the court's high percentage of reversals is illusory, resulting from the circuit hearing more cases than the other circuits. This results in the Supreme Court reviewing a smaller proportion of its cases, letting stand the vast majority of its cases.
[8][
