Nobody said it solves the problem. The point is that it helps.
Also, "I am not going to use an unjust power that I have" is hardly an abdication of their role, it's just a choice made using the power of the office.
The problem is that it's /not/ a power they have, and ought to be shut down by the judicial ASAP. The only reason it's not is because it's not been prosecuted for prior administrations, and has become a pattern of laxity, allowing the legislative to claim to wash their hands of culpability when a law they stand for in public isn't acted on in private.
Also, "I am not going to use an unjust power that I have" is hardly an abdication of their role, it's just a choice made using the power of the office.