Sounds like someone so focused on "if they could" but not giving much thought about "if they should".
I don't want you or any responsible ML researcher to go to prison. Responsible researchers make mistakes, but responsible researchers also consider the consequences of their actions. How much consideration was given to those? And given everything you know now, where would you draw the line? At what point do the consequences of this sort of research become indistinguishable from theft? Suppose the research enabled the piracy of a high fidelity copy of a single author's work without their permission? Would that be wrong? What about ~2e5 low fidelity copies of who knows how many man years of labor?