Rousey suffering from how easy her success came before.
She had it so easy for so long that she just wasn't preparing properly for fights, not appreciating how the division was improving and how naive she had become.
Holm sparked her out because her moron coach didn't think striking defence was important against a fucking champion boxer, because they had developed an attitude of "fuck it, judo throw then arm bar".
She's been sparked out there because she still can't handle striking. If she was sticking about I'd be talking about how she needs a new coach, but there's no chance she sticks about with UFC now. Transition to acting or WWE.