This article doesn't actually seem to provide any evidence to support its claim - the actual factoid at the heart of the article is that Total Factor Productivity (TFP) has fallen since the 90's, which is irrelevant.
The only pieces of evidence supporting the "No Jobs Growth" claim are Facebook's employee count from _2013_ (which has since grown by almost 50% to 12000 [0]), and the claim that "in 2010, only 0.5% of the US labour force is employed in industries that did not exist in 2000", which has nothing to do with "Silicon Valley" since the industry existed in 2000, too.
Remarkably low-quality reporting.