1) Did IH inform Woodford, the Chinese and other potential investors that Rossi had removed the instrumentation and monitoring access, that he was restricting access to it, and that they felt it was not a bona fide test?
2) Did IH inform its investors that they were so suspicious of the test being fraudulent that they declined to collect payment for the power they were generating?
I think the smart money is on "no."
If they did not, surely Woodford, the Chinese and the others will take back the money. It hasn't been spent. I expect they could get it back just by threatening a lawsuit. There is now a mountain of evidence proving that Rossi is a fraud. If I.H. represented him as real and got funding on that basis, it would be easy for them prove that happened.
As far as I know, Woodford has not demanded his money back, so I suppose they told him all about Rossi, all along. Since they told me about their doubts about Rossi, I doubt they would have withheld that information from him.