Think about it for a second Kid, Apoo and Hawkins stepped to Kaido and we saw what happened. After MF nobody seems to have shown any interest in looking for BB except Akainu. Shanks is still a mystery so he's in the air.
Urogue beat one of her Sweet Commanders
Luffy beat one of her Sweet Commanders
Kid sank two of her ships
Has had one subordinate leave(and from what we've seen that doesn't really happen often)
Had another subordinate plan and try to kill her
Had her territory threatened
While it's not much it's more than we've seen any other Yonkou suffer especially at the hands of people who are supposed to be below them. It seems like she's chosen the most to make a move against and she seems to be the least successful at defending against those attacks.