The Bee damage is spread across all pellets now, before each pellet had the extra damage. So if your Bee added 42,000 amp damage, it was added to each and every pellet leaving the shotgun. Now the 42,000 is spread amongst them all. Sandhawk is best now because it spreads the shots, but it doesn't say it does in the stats. So every bullet in the 8 spread has the extra damage added. It's not spread out to all 8 evenly.
The CC was not nerfed, but seems like it was because of the Bee changes.
The best way to use the Sandhawk is to have bullet speed added to your shots. Assassin with velocity and a mod with points added to velocity makes the Sandhawk very deadly. 200% added speed to all your shots.