It is a similar pattern to San Francisco and other big cities mentioned in the Guardian article. The new construction is aimed toward generally young, generally single, tech workers at Google, Apple, Facebook and other employers within easy commuting distance of Mountain View. Many existing apartments have remodeled and boosted rents, effectively evicting many people with lower paying jobs. There is minimal construction of apartments for lower paid folks.
Google has the political clout in Mountain View to get more apartments for its tech employees despite the NIMBYs. Rental costs are a major negative for Google since the high cost means California tech salaries are actually among the lowest in USA adjusting for local cost of living. The disparity with the Plano Texas region (so-called Telecom Corridor) is astonishing.
People with lower incomes who are disproportionately Hispanic in California don't have a powerful force like Google to stand up for them.
There was a rent control measure (Measure V) passed in Mountain View about one year ago and remarkably actually enforced despite legal challenges.