That wasn't it at all. And Gene, as someone who trained under Karl Gotch, Lou Thesz, Ed "The Strangler" Lewis and Vic Christy was bringing a lot more than judo to the table. It was that he was an old man getting called out by young men and he pointed out the absurdity of their challenge to him by making the challenge to Helio.
As it is, proteges of Gene LeBell have done great in MMA and grappling. Karo Parisyan, Manny Gamburyan, John Lewis, Ronda Rousey, Neil Melanson...if anything, far from being outdated, LeBell was, as compared with the Gracies, ahead of his time, what with his mastering of leglocks which they had still not embraced. And the bread and butter hold of catch-wrestling and one of LeBell's favorites, the DWL, was the same technique Sakuraba used to make things so tough on the Gracies in the early 2000's.