She's not talking about the movement as much as she is the people that are using the movement as a virtue signal.
You sort of CNN'd that article and left out the most important parts.
She took the whole thing quite seriously, being one of the first accusers to get real traction.
She even stood by the movement when her good friend Asia Argento was accused, severing ties with her over her hypocrisy.
When she says "it's bullshit" she's referring specifically to the people who are using this movement inappropriately and/or hypocritically.
Basically, calling bullshit on things like Lena Dunham, who stood up for #meToo until her friend got accused and then disappeared into the night.
