It's an awkward one, and I totally agree with you on all points. Without sounding like I am contradicting myself on my earlier post, I wouldn't suggest walking away literally. More so, strike a deal that may suppress the current uncertainty in the industry and allow the cogs to start turning again, whilst implementing further legal contracts between DECC and their involvement in such funding. As said in one of the articles linked in this topic:
"...the suggestion is deeply concerning; that banks do not believe the government will treat the FIT like a bond-like income stream it is supposed to be, and expect the government to intervene and change the FIT again in the future. This bodes very badly for the green deal and renewable heat incentive if it is true"
The fact is as we all know, DECC were too slow to react and once they did, it was with a knee-jerk reaction. There is little gain to come out of the court case directly, but policies could be put in place to stop this re-occuring, regardless of the appeal outcome. Damage has already been done on both sides, so why not strike a line under it and start working together to ensure both DECC and the solar industry as a whole get a result everyone benefits from, and start moving forward.