This seems analogous to the manipulator thought experiment in the free will debate. Imagine a scenario such that, should you choose or intend to choose X, some advanced manipulation will kick in and force you to choose Y. But in fact you chose Y and the manipulation did not kick in. Are you responsible for choosing Y?

If you think you freely chose Y in the above scenario, it seems one can freely consent even in coercive contexts. The issue is the law adjudicating between consent and coercion in such scenarios. However, if the presumed victim is not contesting consent, I find it hard to see a problem.