No, they haven't, because Ford and Ramirez were both credible witnesses with fairly well-supported accounts. Ford's testimony was solid and was backed up by years-old notes. Ramirez's story was likewise backed up by several personal emails exchanged between multiple persons months before the nomination.
This woman was never even known to the public, and seems to just be a person akin to the wackos who call into police stations claiming to be the Zodiac killer, when we all know that's Ted Cruz. I personally had never even heard of her until just now. I for one was actually expecting it to be that Svetnick lady.