The trail from Henry Filmer to Huntingfield is the only one for Filmer so far badged by the Magna Carta Project. The aim of the Project, at this stage, is to investigate, write up and badge at least ONE trail from ONE Surety Baron to each Gateway Ancestor. Lots of Gateway Ancestors have more than one Surety Baron ancestor, but many of the possible trails have not yet been looked at by the Project.
Be aware that the information on relationships and lines of ancestry/descent on WikiTree is not always accurate - it is only as accurate as the information on WikiTree, and that is not always well-sourced.
A professional genealogist called Douglas Richardson, whose books "Magna Carta Ancestry" are the Project's starting point, lists only the descent of Henry Filmer from Huntingfield. Filmer may still be descended from other Surety Barons as well, and possibly this might even emerge if one put together entries in different sections of Richardson's books: but it would take research and investigation to demonstrate this.