You don't know how to read manga. SHawk send Zolo flying. BB (without Tremor DF) buried SHawk in 1 panel.
BB without Tremor DF, blocks SHawk's mountain slash with 1 hand > >>>>>>>>>>>>>>> 2 swords Zolo gets send flying vs. a weaker slash from SHawk.
BB didn't even use Tremor DF or his Haki imbued attacks on SHawk. He buried SHawk in darkness and moved on, he didn't care.
You act like he tried to hurt him but failed. LOL.