Yeah, they even do a big leap into QiXing...
So both forms will have diverged from a common ancestor,
But if we take the history of the village as correct then XiaoHongQuan has remained remarkably similar for near 400 years and has been in at least these two parts. In the Nanyuan they said they have 4 XHQ. So it may be that all 4 are similar to the 4 current ones.
This is cool to know and makes me certain that this form should be considered part of the main XHQ canon.