Ignoring everything else that's stupid about this "idea" (which is something that's usually posted on fresh accounts), two things come to mind:
1. Who, amongst people who have/are close to 4 digit raider.io score, even does heroic five man dungeons?
2. Who needs helps with heroic five man dungeons? How does anyone benefit from dragging overgeared and bored players into such content? The only "community" this would build would be the "community of people dropping the game for good because Ion finally lost the rest of his mind".
I mean, at very least this should have been "LFR". Except the thing is gated, so it wouldn't work anyway. What a shame, such a wonderful idea will not come to pass.