I'm not sure if I should say this since it's not like JK Rowling needs any defense nor does it invalidate criticism of the depiction of goblins or any other questionable things she's said or wrote but it should be noted that I think a lot of the physical characteristics of goblins were added in the movie.
In the book the description of the first goblin at Gringotts is:
"The goblin was about a head shorter than Harry. He had a swarthy, clever face, a pointed beard and, Harry noticed, very long fingers and feet."
And I don't think their physical appearance is really referenced in the rest of the chapter.
In the book the description of the first goblin at Gringotts is:
"The goblin was about a head shorter than Harry. He had a swarthy, clever face, a pointed beard and, Harry noticed, very long fingers and feet."
And I don't think their physical appearance is really referenced in the rest of the chapter.