I've said it from the start: Haki has always been a very inconsistent power system, that wasn't really thought through and just seems improvised.
It's really like Oda realized that the logia DFs were too overpowered and that Luffy just had no way to go toe to toe with all of them in a fair fight and then just came up with a second powersystem.
Those things usually tend to create a bit of a mess.
Using one really thought through and consistent powersystem (like Nen in HxH) is way better than coming up with one powersystem and then just bringing up a second additional one, because you realized weaknesses in the first system.
It's really like Oda realized that the logia DFs were too overpowered and that Luffy just had no way to go toe to toe with all of them in a fair fight and then just came up with a second powersystem.
Those things usually tend to create a bit of a mess.
Using one really thought through and consistent powersystem (like Nen in HxH) is way better than coming up with one powersystem and then just bringing up a second additional one, because you realized weaknesses in the first system.
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