My first thought after Melania's speech was she wanted to shift the burden of proof to the survivors. She wants their testimony WITHOUT the files released so there is no official documentation to back them up. Name one Congressional hearing that devolved to he said/she said where the she sayers won.
She wanted to set people clamoring for testimony, rather than demanding release of the files. Because of what's IN THE FILES.
Then the survivors came forward to make that exact point.