Baron needs another rework
He's far too weak.
Assuming the buff is left as-is, Baron himself needs some changes to make him an actually formidable foe. He should have all sorts of CC and damage, but it's rare to see a team leave baron with less than 3/4th of their health still intact, nevermind how seldom he does his easily-dodged knockup.
It should never be a cakewalk to take him, especially not with less than your entire team. I'm all for the buff being left as it is, but it needs an enemy whose difficulty is on par with the reward.