I watched this at least a couple dozen times, then watched the related post “Bounce!”, then watched this some more times.
I see Steve’s push to rotate MC and push into him. MC adds to Steve’s rotation while spiraling into Steve as he switches stance. MC’s “stick” goes into Steve underneath Steve’s aim. The sum of MC’s forces, added rotation, stepping in, his right knee touching inside Steve’s knee, MC’s split to push back into his left foot and left fingers, pushing into Steve slightly with his right qua, is like a screw going into Steve maybe just above his dan tien sends Steve up and back. He has used his outside points to add leverage to his inside rotation, which looks like a light touch.

Perhaps I am overthinking this!!

Never anticipated seeing so much in such a short clip! maybe making things up?