I think it's actually a good idea to keep this subject unlocked because, whether the devs decides to make radical changes to it or not, this is STILL a very good subject to discuss; locking it simply because people don't agree with your viewpoint doesn't seem like such a proper use for it. If the rewards system is so irksome to you that it would keep you from playing the game then... well, that's your decision to make for yourself, enough said about that.

As for the subject of the reward system itself, here's what I think of it; I've only played a good several games for the first two days I've been able to play it (and that was two weeks ago) so I don't feel confident enough to speak about ways to change it. However, I can understand that trying to grind for a particular reward when it can shrink drastically because everyone else wants can be, at the very least, annoying at times. So here's my personal strategy for whenever I feel like grinding out a particular currency (ie gold, character points and faction points, if I'm remembering right); don't pick the mission that offers the most of whichever currency you're grinding. Instead, pick the mission with the second-highest or even the third-highest amount.

The logic towards this idea is, by selecting the mission that gives the most of a currency you're grinding for, you are very likely to be grouped up with people who are ALSO grinding for that particular currency. Given that there are no blueprints that others are able to snatch (assuming the bug mentioned by WYRDBOY is fixed, hopefully), chances are you'll be fighting against everyone else for a grab of the main pot, thus having to split it with whoever has chosen it.
However, if you go and grind for your desired currency in a different mission than one that offers the most of it- like say, picking a mission with biggest reward being faction points over gold- more likely than not, people will be going for the faction pot instead of the gold pot. It's by no means guaranteed that no one else will pick the reward pot as you still, but it should be less likely than if you try to grind for gold in a mission that rewards mostly gold. Depending on the mission, it might even be possible to get a bigger chunk with no or one split in the former mission than splitting it between three or four in the latter.

tl;dr While some improvements can certainly be made to the current reward system, there are still ways to get more of your currencies by simply choosing missions that gives a little less of what you're looking for than those that gives you the most of it, simply because people are more likely to bet on whichever pot's the biggest for that mission.

Though I cannot say how effective this will be in the long run, I can at least say it is worth trying during the beta and the initial release of the game to see how well it would actually work out. This is merely an idea based on probability, after all; by the time most people start to catch on this thought-process, there could be plenty of other missions with varying amounts of different rewards, so it's uncertain whether that will assist with said thought-process or not.