Apparently you're failing to understand — he has the standing to really bust open crap, so the courts could not legitimately toss it out, and the Grand Juries… they're more powerful than the government likes, which is why they've tried to restrict them [but they cannot simply erase presentment, as it is mentioned in the Constitution].
But let me put it to you this way: should he be just rolling over and dieing, or actually pursuing these thieves and liars with each and every thing that he can think of?