I would argue that it was easier for Iowa to win team titles back then. Talent was spread out nationally, so they didn't need to accumulate as much.
The top-tier guys who in the old days may have gone to Syracuse, Notre Dame, or some other school that was not competitive in the team race are now mostly going to one of four teams. This means Cael may get the #1 guy at a weight, but still has to worry about the #2 guy going to OSU, tOSU, or Iowa.
FWIW, I would submit that it was harder to win the team title back then. There were approx. 180 DI teams during Gable's reign. DII NCAA champions, runners-up + wildcards (1972 Gary Barton-Clarion St. 134 w/c), DIII Champions (1977 Ken Mallory- Montclair St.134) were included in the DI championships. More variables with more competitors. One may argue that there is more concentration of good wrestlers at a few schools and that's probably true, but only one guy can compete. the others have to watch. If those #2,3, and 4's had options to compete elsewhere with different coaching, workout partners, etc., they have the chance of becoming a spoiler, e.g., Suriano. If he stays at PSU, maybe he's in the stands watching. Even tho he didn't win it, he took out some very good kids.
As one who was fortunate enough to compete/coach against one of the greatest wrestling dynasties ever, I can assure you that the Gable coached Iowa teams beat some very, very good competition. It didn't seem that way because they were so superior in so many ways. From the first year that Gable was hired as asst. coach at Iowa, his impact was obvious. His coaching style, intensity, influence, and the rules of the time allowed him to make it look like there was little competition. They were relentless, physical, in-your-face, and constantly pressuring you. Factor in the 8 minute matches, their 3 acre wrestling mat, the rules of the time, and a rabid fan base and all the ingredients were there for domination. I witnessed many excellent wrestlers get way ahead on points with Gable's kids, only to not just get beat, but eventually get pummeled or pinned because they were just too damn tired to keep fighting. They were hard to hold down, they were hard to escape, and if you did, they were back in your face, pressuring, pushing, pulling, banging, and wearing you down. How he used the rules to his advantage was masterful in and of itself. With all due respect, Cael's a great coach and great guy, but I would still put my money on a Gable coached team v PSU or any other team now for that matter.