Well, there's an old saying that goes "If you do what you've always done, you'll get what you've always got". It may be that she's seen the results that you CAN get with hard work and practice and has decided she would like to have horses that behave like that too. It's never too late to learn something new. That's why I enjoy talking to everyone here. We've all got different perspectives and tricks that the others can benefit from.
Well, and I think what's changed is that she's now trying to break and train two young ones, and when tested, they don't behave like those old trusty horses she's got.
Someone laid a lot of groundwork for that Grey Arab and the chestnut QH the boy is on to behave the way they do in the scenarios Tiff ends up in :~D.