Yes, even though Iowa hasn’t had a transfer win a title, for the most part their transfers have performed as expected, often better actually.
Your point seems to be changing. You originally said “Iowa has objectively done the best in the portal the past 7 years.” But now you’re implying they haven’t “produced as expected” and PSU’s have. Are we just talking transfers here? PSU had Drew Hildebrandt transfer in after finishing 4th and he went 1-2 at NCAA’s for PSU. That’s probably the worst result of any AA that’s transferred in the portal era. They also had 3rd place finisher Kyle Conel transfer in and go 3-3 during the regular season before getting injured.
If we’re just talking the quality of the wrestlers before they transferred, it’s probably a close race between Iowa and PSU. And they’ve almost all performed similarly to what they had done in prior seasons (or what people knew they had the potential to do, like in the cases of Kerk and Mesenbrink who used the portal to transfer before using any eligibility elsewhere).
IMO, Central PA is home to the school that’s had some of the best transfer results in terms of improvement. But it’s not PSU. It’s Lock Haven. Anthony Noto was 2-4 during his redshirt year at NC State, and 2 years later placed 4th for Lock Haven. Before the portal, but Chance Marsteller was 11-8 for OSU, then became a 2x AA for Lock Haven. This is why I don’t think the portal is bad for wrestling. Yes top teams will pull guys from smaller schools that weren’t highly recruited out of HS. But the smaller schools can get guys who didn’t pan out or couldn’t make the lineup at the bigger schools.