I don’t really agree with a lot of the guys on that list, some didn’t really get injured until after graduating, some only had one injury that occurred during a match which I would put in a different category, and some probably just had fake injuries so they could get a medical redshirt.
I do think it’s fair to include Cassar and Kerk on the list though, despite being national champions. Spencer Lee was a national champion and Iowa often gets criticized about his injury, so those people should also criticize PSU about Cassar and Kerk. They’ve also had other guys with multiple nagging injuries though: Shakur Rasheed, Robbie Howard, Brady Berge to name a few off the top of my head.
Bottom line I don’t think PSU has a “problem” with guys getting injured, but IMO I don’t think Iowa really has any more notable injuries than PSU does.