Do not know about impact but Ronan Farrow's Weinstein story was published in October and put together over the course of a ten month investigation [0]. Susan Fowler's blog was posted in February. I'd imagine Farrow probably started on his story before the investigations started; especially since Weinstein was a well-known story. If Farrow's article was posted before Fowler's, I want to say that there would still be the same reaction. A lot of people had no idea about Fowler and Uber but people definitely know about Weinstein.
[0] https://www.newyorker.com/news/news-desk/from-aggressive-ove...