I suppose you think Parkhomov in Russia is not independent.
Parkhomov claimed to have positive results on testing something like Rossi's Lugano device. Ironically, the Lugano device did not work even from its own data, so this is not a very good start.
Unfortunately the history of Parkhomov's experimental work does not deliver confidence:
(1) First test COP=2 from potentially good calorimetry, but badly documented experiment. (Potentially good because if it allows liquid water or steam to come from the device it will dramatically overread COP, if it is doene competently, with no steam or splashing, it is bomb-proof).
(2) No replication of original experiment. Next results comes from much less secure calorimetry. The data from these is also later shown (and then admitted by Parkhomov) to be photo-shopped over a section that P claimed validated "heat after death".
(3) Since then P has vanished from the scientific debate.
What no comment on Woodford Equity doing due diligence before investing $49 million? Obviously we should take your opinion over someone that has actually examined the plant. Even though you have never been near it.
The problem is that you do not know what is the DD that the Woodford fund actually did. They are not scientists, and I'd guess they relied on the scientific evidence as presented to them by Rossi. In this case there is no published data other than arxiv (Ferrara) and UoB (Lugano). They probably take these test results together with Rossi's year long test as good DD. We now know now that the second and most careful of these two tests has a null result, but that information was not available to them when they made their decision.
Your assumption here is that the fund has done better DD than exists elsewhere, but you have no evidence for this. Remember, their remit is not for proof of LENR. They will bet on a 10% chance that LENR might be the next big thing. Very different. And they are not competent to make scientific judgements, so the quality of their judgement will depend on who is their advisor. There are even cases where funds make such investment with no independent scientific advice! Generally investing is about people and business prospects not science.
Your reasoning here suffers from the "selected positive" fallacy. That is, Rossi will no doubt try to get funding from many financial institutions, all of whom have different methods of evaluation. One of these invests, we naturally do not hear from the others. So even if financial institution high risk investment is your method of evaluating science you do not have a fair sample.
BY the way, the investment was in Tom Darden's Industrial Heat, so it seems he has not tired of it, as you wrote.
Did you listen to Darden's recent speech? He says that IH is one of his many long-term investments in LENR.That he adopts a hands-off stance. He is a true LENR believer and he backs people to come up with the goods eventually, with no timeframe.
Given this stance under what circumstance will he disown Rossi? Certainly not when Rossi (with his support) has managed to secure (you say) £40M extra funding for LENR.
From Darden's POV it is not about working product. It is about pushing for funding into an area he believes will save mankind long-term. All understandable and Darden as someone non-technical is an ideal Rossi supporter. Whether or not Darden is tired of Rossi he will never tire of LENR. Believers don't, and the LENR proposition is logically undisprovable.
Do you think there is any possible evidence that could disprove LENR? If so, say what it is... I can't think of anything myself because the hypothesis does not make any concrete predictions.