I want to add something to this. While they did not add the term governing body to the text of the scripture, I think that adding the term elder, does have doctrinal impact.
The thing that came to my mind was the recent "Walk by faith" video, that shows a "elders Meeting" in the first centruy.
15 Now some mencame down
from Ju·dea and began to
teach the brothers: “Unless you
get circumcised according to the
custom of Moses,
you cannot be
saved.” 2 But after quite a bit
of dissension and disputing by
Paul and Barna·bas with them,
it was arranged for Paul, Barnabas, and some of the others to go
up to the apostles and elders in
Jerusalem
regarding this issue.