On the ground before they get on top, we are taught to get up quickly if we can do that without being kicked in the head. If we can't then we stay on the ground to create some distance. We do something similar to this but ,the way that we do it in the school allows us to do more than just get up and that one kick.
If someone is on top of me trying to pound my face then I would bring them close to me. One this helps me to prevent him from kicking him in his face and it puts me into a good position to use Chin Na techniques. There are some Chin Na techniques that work both standing and on the ground. If the Chin Na technique is successful then there will be no more grounding and pounding or grabbing. If it's not successful then it's a reset to prevent my face from being bashed in and then apply a different technique.
Someone circling around for a soccer kick is no big deal mainly because he's not trying to come to the ground, which would be a bigger problem for a kung fu practitioner. If he's just circling around then there are a variety of strikes that can be done from the ground that are in my system. The main thing is that a weak root is a weak root regardless of if I'm attacking the root while standing up or attacking from the ground.
For many styles of kung fu, getting off the ground doesn't always means standing up in a general fight position, it just simply means on both feet. In Jow Ga this would qualify as "getting up."