Not having been at the meeting, here's my take on it.
It's becoming saturated in that it's the hot topic right now where there is a lot of funding so everyone is trying to get involved to some level. There is a lot of people competing for limited resouces and there is only so much that can be done with current technology.My wife was recently on a grant review panel actually realated to this topic and there were about a dozen good proposals of which they could fund one. Definitely saturated.
This can have a couple of effects. One is that people rush to get things published and so don't spend as much time on their analysis as they should. The flip side is that competition should push the higher quality material to the top.
Another aspect of this is that we have a semi-broken funding system for research as captured in this wonderful Ph.D comic. This particular field requires (in many cases) big resources and there is a definite disparity between the various institutions around the world. Since in many cases, regardless of the field, (and I've seen this in several different grant review panels) you need to already have results to get funding, if you don't already have the resources to do the work, you cant get money to work on it. And so people who have great ideas, but happen to be at "non-connected" institutions, are many times just out of luck.