This fight may accomplish something, namely the overdue retirement of Charr, and the reestablishment of Miller as a contender. But it’s no title fight.
The only way to ensure that fight actually went ahead would be to have no drug testing. Battle Of The Cheats
Miller is nothing special and Charr even less, Miller beat better names so he should stop Charr too, Miller by TKO...
He may be nothing special, but he'd probably walk right through 70% of the Top 20 ranked fighters at Heavyweight. Which shows you just what dire shape that division is in.