The chat show host expressed frustration that Kardashian has not properly addressed the break-up with the press, instead relying on mother Kris Jenner to speak on her behalf.
"You know, Kris [Jenner], we had her mother on the show last week - one thing I have to say about Kris is she never flinched at any of the questions that I asked. She answered all of them to the best of her ability, and I appreciated that," Williams told MTV News.
"With that said, I think that it's kind of rotten and immature that Kim couldn't have done her own perp walk.
"And I understand [that Kris is] the one behind the machine, but maybe they could have done it together or they could have worked a couple different shows at the same time as opposed to running across the other side of the world, where perhaps softballs were [lobbed] at Kris or Kim."
Kardashian filed for divorce from Humphries only 72 days after marrying in a $20 million fairytale ceremony in Montecito, California.
The couple met in Humphries's home state of Minnesota last week in a last ditch effort to save their marriage. However, Kardashian is said to be continuing with divorce proceedings.
Jenner has said that she is unsure whether her daughter would reunite with Humphries in the future.