I'm somewhat confused by that article, one of its key pieces of data (saying that a full human genome sequence would cost $90,000 using this technology) comes f

I'm somewhat confused by that article, one of its key pieces of data (saying that a full human genome sequence would cost $90,000 using this technology) comes from an expert comment made on Quora. The Quora post made the $90,000 estimate in early 2016, then updated it in July 2017 to $10,000. This article was written in December 2017, so why does it use the original figure and not the updated one?