The problem is that aside of Hawkins being a scarecrow (which is inspired on Voodoo, not the Wizard of Oz), the rest doesn't fit. Hawkins is not brainless, Kid is not heartless and Apoo is not a coward, much less a lion or lion-themed, so you can't claim that there's an inspiration. Hawkins has a good reason to be a scarecrow, and it's not the Wizard of Oz.
An inspiration doesn't need to be 100% accurate, but it also needs to be way more than 1 or 2% accurate in order for it to be an inspiration.
Kidd slaughtered weaker pirates begging for their lives, he is pretty heartless if you ask me.
Hawkings is straw man - in general and you are not Oda so you cannot tell if idea on Hawkings being straw man came from Wizard of Oz inspiration, you can only say that hawkings ability is inspired by Voodoo themes). To me its more than 2% that you joke about(I hope, otherwise its plain ignorance and nothing else to score it so low).
Apoo ran away after pissing off Admiral(he also ran away from pigs when he entered New World- so you cant deny he does something alike a cowardly person, while he also seems fearless when it comes to fighting people like Kidd.
Its not my fault you cannot see something as light inspiration and you need it to be plain obvious and more in depth when it comes to designs and personalities of characters from Kidd alliance.
Guy being made out of Straw, Guy that was creating tin mans since childhood and Apoo whos nickname is Roar of the sea and acts like a coward(backing off from fights, unlike for example Whitebeard) for an alliance against a woman that is Emperor and portrayed as Witch- by theme of living in castle made out of candies, eating people..
So all of that cannot be inspiration because you say so and you dont agree with it. For me its plain ignorance. Inspiration is inspiration and not rip off. By rip-off I mean for example how FT takes stuff and designs from One Piece. Not all inspirations must be perfectly obvious and directly into the face. For me that is.
If you differ in opinion then its your loss as you limit yourself with saying that what I listed is 2% accurate. Its open for interpretation.