As has been mentioned, there are groups of people that want different things for the future of the game. At some point, the Homecoming team will have to make a choice between continuing to add to and tweak the game or not, which will disappoint some part of these groups in either case. These people will have to make a choice between sticking with Homecoming anyway, or transitioning to a different server that offers what they're looking for, which might have a smaller active population. There just won't be a way to please everybody, so I personally hope they don't try to.
I guess then I would agree with the argument against an open-source development for Homecoming's potential update content, if that's the direction they take. Absolutely listen the feedback of the community and outsource for help, but let the final say on what actually goes in the patches remain in the hands of a few individuals chosen by the live team. IMO, a player-run development committee will only run up against the problem of trying to accommodate everyone's wants, to the detriment of the entire project.