No particular reason I can see to hate her - she was relatively recent NC coach, didn't want inexperienced players (as noted, she apparently wasn't all that fond of McCray either) and thought she would get her way. A lot of coaches in her position might indeed get their way (I suspect Van and Geno almost certainly got there way, I suspect Coach K on the men's side likewise), but she didn't. She gave up a lot to coach the team (a year from Stanford), I don't think the gold medal was as "assured" as we think it is now, and all in all, especially given the publicity surrounding Lobo, she just didn't want to deal with it.
It doesn't make her a horrible person, I'm sure we could find additional similar cases involving a variety of coaches in a variety of sports. In some cases, it can come back to bite you, either because you lose and they blame you for not taking advantage of so-and-so or you end up needing so-and-so and they prove you wrong. In the end, this was a no harm, no foul situation.