Well, good luck with your endeavors. The DD provided is forward-looking. Ryder Scott are true pros, not fools. Don't just take on anyone as a client, and some simple DD shows they offer clients a hell of a lot and have an excellent track record.
Personally, I don't care about past attempts that didn't pan out as expected. What is happening now is new, not past, and supported by industry pros. I would trust experts like Ryder Scott versus any old Joe-off-the-street advisor. GLTY/A again.