And in a way, the Nuremberg Trials had no remedy looking backward. Nobody was or can be resurrected. The remedy in that trial was death and imprisonment for those charged and convicted.
I'm not saying the complaints have no effect. At the very least they put some people on notice, and to the extent the complaints are viewed as credible, some delegates may be turned-off to the wrong-doer, for whatever that is worth.
Politics, like government, is an exercise of raw power. The control mechanisms to hold that power in check are vague and unreliable.
And my point is that whether Trump gets some official party nomination redress or not, there will be justice in the votes of his supporters that proceed onward after the nomination. If the prevailing sentiment is that there was dirty-but-party-legal monkey business, look for even more voters than 2012 who refused to hold their nose and take it up the keester "one more time."
Cruz, Ryan, WHOEVER gets nominated under a cloud of suspicion despite 'according to playing by delegate rules' will NOT win the general election.