Yes, getting the foreground right seems to lose the accuracy in the background. And the detail in the straw is just bizarre, but perhaps this is just the downscaled version?
I should point out that I find these cameras very interesting and promising, and am not trying to bash them in any way. However, they do clearly have issues and limitations, the thing to do is to make sure that they work well with your own workflow and expectations before buying one.
Personally, I would love to try the DP2M or DP3M, but given my workflow preferences, I would not buy one until SPP (or whatever the Sigma software is called) is not needed, and Lightroom could be used to get decent shots.