Actually there is a big difference. His sternum is on the ground and so is the front of his pelvis. Her sternum is on the ground but her pelvis is way up at a much higher altitude. Her pelvis is so high she's kneeling. His pelvis is so low he has to do a split and the insides of his thighs, not his knees, are touching the ground.
I wish people would stop presenting these poses as if they are the same.