Let me put it more clearly for you. If I tell my programmer to create an algorithmic system that “gets the best price” for my customers, and he does the math and inadvertently realizes that trading activity that a judge would dub intentional spoofing, is the best way, but the programmer doesn’t know it’s illegal, and the buyer of the software “ claims he know” it was spoofing, but that is, in fact, what it did, the intent IS there, regardless of what everyone claims they knew, claims they did not know, wished they knew, etc. the intent is not what you think it is, and plausible deniability is not going to likely suffice.