I'll pretend Sally was being serious.
Iestyn was peripheral to the Bulls success in 2005. Peacock and Pryce weren't. Signing Iestyn cost the Bulls both of the aforementioned players. Both went on to play in many more major finals for their new clubs. Iestyn and the Bulls didn't contest another after 2005.
Meanwhile, since "losing out" on Iestyn's signature part way through 2004 the young, home grown Leeds halves have played in 8 major finals and won 5 championships.
Then, of course, we come to the financial ramifications for the Bulls from the eventual settlement of the legal claims.
Yes, it was a huge mistake "missing out" on iestyn.