The vested interest was the funding going to U Rochester for hot fusion research. Turning off that spigot would not endear John to the University. It is all about research money, RC.
I work at an R1 university. I know how research money works. Your conspiracy-theory version of this is, if possible,
even less grounded in fact then your belief in cold fusion.
I mean, to believe in cold fusion, all you have to do is believe the people who are explicitly telling you to believe this. "A faculty member would not turn off a research spigot" ... geez, did you make that up yourself? Based on what knowledge of funding, academia, and academics' motivations?
a) At my university, I can think of ten cases
off the top of my head where the success of Research Group A would hurt the funding for Research Group B. There is not even a hint of a whiff of truth to your conspiracy-drawing along these lines.
b) Huizenga was studying
fission and transuranics. Fission, not fusion. Transuranics, not tritium. A breakthrough in fission research would
also hurt the case for inertial confinement fusion.
c) I mean, you can't even draw a picture of the motivations here. Let's game it out. It's 1989. Suppose you've just seen evidence of a $100 cold fusion apparatus, very widely publicized, easily reproduced, already in the public domain. "Well," you say, "I bet that
one negative assessment of this apparatus would successfully suppress all R&D on this technology for 30 years. I'm so certain that that suppression will work---i.e., no one will reveal my lies by actually repeating this easy public-domain experiment, or reanalyzing the public-domain data I'm lying about----that I'm willing to commit a federal crime (misuse of research money). My lie will cost America over $100B/year for decades, but it'll preserve one lab at U. Rochester that earns the University $2M/y in overhead, i.e. as much one operating room at the university hospital. Although I'm an academic with tenure, non-performance-dependent salary, and contractual immunity from various forms of admin interference, I will mysteriously bow to the University's whim on this, bearing all of the personal, reputational, and criminal risk myself. OK, that all sounds like the most likely and desirable outcome---let the coverup begin!"
The only evidence you have that for this fantastic conspiracy---that Huizenga was biased by Rochester's research bean counters---is nothing at all. You don't like his conclusions, so you went off conspiracy-spouting.
It's about as plausible as the Moon Hoax. "Hey, guys, let's spend $10B and employ ten thousand people to build sound stages and detailed moon-gravity and moon-optics simulations. This is a lie, but it's perfectly safe, none of those 10000 people or their spouses or kids or equipment-suppliers or auditors would ever spill the beans."