I think he means SFJ, a drop in map mod code that works with vanilla ra2.
Having Ares run as default without new assets, is still beneficial as we can do more with what already exists, add new mechanics, new weapons, etc. It would be a whole new age of fun mod maps for CNCNet.
Plus we can use it to fix existing vanilla bugs.
Personally I have been working on a drop in map code of my own, that tries to make use of all the left over / unused assets in the game to create a fresh new faction, that looks different, and has new and unique looking weapons.
Working on this mod had me working around a ton of game limitations, dont get me wrong its fun working within the limitations but it would have been really nice to have Ares code at my finger tips to make some of my unit ideas a reality.
As for all the existing amazing Ares mods that had a ton of work put into them, its unfortuantly too much for unexperienced players to set those up to try them out.