I dunno, in the full speed, it looks unintentional, like she was getting up and stumbled, and the foot went down. But in slow speed it looks intentional.
The shrug is before the stomp. In the video she obviously complains when she is stood on, but the commonly shared still is mid-stomp before the player has had time to react to the pain.
I disagree, it looks fully intentional at full speed. There's no hint of a stumble, and there's no reason she should need to place her foot down there. She knows exactly where the other player is and chooses to stand / stomp on her.
The officials all agree, it was a definite red card for violent conduct.
If you don't watch it regularly you probably underestimate the body control and awareness the players have. A normal person might accidentally stumble and step on someone else getting up. But, players at that level don't really do that.