F&P's 1992 experiment is the cornerstone of the entire CF's house of cards.
As you related a few posts ago, F&P used the results from that experiment to request DoD funding. But it's a huge leap to conclude that it is thus "the cornerstone" of CF. If that 1992 experiment was not made I see no compelling reason reason to believe work on CF would have fizzled out. You may have a point about foaming in this specific case (I haven't read the material closely enough to have a strong opinion), but I'm puzzled why you project a potentially real but specific problem in one experiment to all the multitudes of other quite different experiments.