My only disagreement is that I think Iowa has been the Mecca of NCAA wrestling for decades and still is.
From the quality of programs ranging from JUCO through D1, D2, and D3, and considering attendance at Carver over the decades, the Grapple on the Gridiron pulling in 42,000+, the last two Olympic Trials being held in Iowa City (no, the OTT's aren't officially college events but they're the goal of the best kids in college and OTC's do play directly into recruits' decisions to attend various schools), and the World Cup scheduled for Iowa City in 2018 (also not officially a college event, but again a huge deal for the top college kids who aspire to compete internationally), no state compares to Iowa as the Mecca.
I do agree that the Hawks will get back to the top of the heap before very long, but there's no doubt in my mind where the Mecca of college wrestling is, and has been since about 1975.