actually there are more than a few guys that are going getups with kb weights from 56- 68 kg. And even more with a barbell. it's all about what one trains for, the getup, for the shoulders, is a static hold ( mostly) and much different than a press or a classic "grind".I knew that someone will disagree. Well basically my statement was in general sense: hips are stronger than shoulders.
@Rif does very heavy swings.. no one does get ups with that kinda weights, but most of us have potential to go heavy with swings. Much heavier than get ups. This is my opinion. Feel free to disagree.
and it's not just a shoulder exercise per se, but a total body lift.