As for the safety of Owings dropping 2 weight classes, that would depend on his normal walking wait. What you don't know is whether he was wrestling light for his his normal weight class. If so, then shedding 5-6 lbs to go after Gable wasn't much of a safety issue.
Kurdelmeier bumped 2 weight classes to get to heavy, that is not all that unheard of. The outcome is pretty much self-explanatory given the loss. Nick Roy, Michigan, started the season at 171 but finished at 197 and got his first A-A designation. That's a pretty hefty in-season bump. Now you know he didn't pack on the extra poundage overnight.
For 3 years Roy was consistently ranked 4-8 for a good part of his first 3 seasons. Was always seeded for the NCAA and always found a way to lose before the medal round. It's a bit odd that he bumps 28 pounds and A-As from an unseeded position. Since he is a NJ boy, it was nice to see him walk away with a totally unexpected medal his senior year.