More rational than taking JC's muckraking speculation as gospel.
And here's the thing. Even if Jody were receiving 5% of the value of the trust as a management fee, selling the team wouldn't change the value of the trust. The compensation from the sale would also be a part of the value of the trust, and her trustee-management fee would remain the same. In fact, it's possible that the trust's value would increase after sale of the team if the asset valuation is its original basis value as of the initiation of the trust, rather than the current estimated value (standard accounting procedure).
So long story short, Canzano's claim that Jody has a financial incentive to not sell the team is BS.