Well, I would agree with you if the DNC leaks were accompanied by equivalent GOP leaks. Personally, I didn't find the DNC leaks that damning to be honest - I don't think the same standards of impartiality that you need for the general election need to be applied to how parties select their candidates. However if other people do find them damning it is information they should have. The rub is that I would be very surprised if there weren't similarly shenanigans from the GOP side, and if that's the case then if you let foreign actors select what gets leaked that's giving them a lot of power...