As I said server outposts are already going to be edited. Since we only have one builder progress is slow. I can't do everything myself, and other staff are busy as well ;) Spawn is included in this since it is a server run land.
As far as your rule change proposal we will take it under advisement, though I'm not entirely sure I like that idea. Tilled soil and crops account for much of the issue as it is additive and allowing more farm land would be more of a hindrance.