I think the benefit of knowing the names publicly might be the public's ability to then no longer elect these people, which cuts off the foreign interference at the root, as far as can be done within the country. It might also act as a deterrent for future MPs knowing their names could be released if they too partake in this behavior. It would accomplish stamping out the problem and publicly shaming these people for the rest of their careers.
Not saying it's realistically feasible or prudent overall to actually release them though.
Atheist here. Extraordinary claims require extraordinary evidence. Atheism is merely about trusting what's been proven, or has some evidence backing the claim that can be verified without doubt. Being agnostic is being indecisive about everything, even things that are completely made up.