This irritates me in two ways. One, Baron was finally in a similar spot to season 5-6. A objective that provides a buff and is usually only taken when one team dies, or if it's end game and teams are trying to make plays. So much better than it just being another stepping stone that only worsened the snowball meta as it was akin to a red buff, but did more. Baron needed this and I think it's bs that they changed it back.
Second,
BARON ATTACK SPEED 0.75 ⇒ 0.625
BASE CORRUPTION DAMAGE 120 ⇒ 60
CORRUPTION DAMAGE RATIO 0.3 total attack damage ⇒ 0.2 total attack damage
What the hell? You halved the base damage, lowered attack speed by a good portion, and lowered the corruption damage as a sprinkle on the top. There is such thing as moderation, but the balance team seems to lack any of it. When you're trying to use a triple beam balance, you ease you're way to the perfect balance, not flip the weights from side to side till you hit the mark. Patch notes should be closer between with less big changes. Instead of dropping a huge patch and scrambling to fix the issues that arose from that one.