Presumably the mtgoxrecovery.com effort is to make injured parties whole to the full extent of their abilities, well the block chain will help you to follow the money.

If what Mt Gox did was foolish negligent nonsense the mtgoxrecover.com effort is extremely limited, however if what Mt Gox did was criminal then the block-chain is the way to get more for your clients, it's the way to literally connect the dots.

Any real effort to make the investors whole should be centered around the block chain, it is both your proof, smoking gun, evidence, and most trustworthy witness.