Yer I can see that, he's lifting his foot everytime the other guy kicks him, the movement resembles a(little) bit of aikido, I think Compare: Catch Front Kick and http://www.aikido.w.opolu.pl/Filmy/015.avi tell me if you think they are similiar, the aikdoka goes right behind and takes advantage where else the Baji Guan goes on the side and maybe ready for attack.