In the article it says this move by Google is worse than Amazon investing in businesses and stealing info. How is this worse? Google bought the whole company, didn't make partial investment. They can do whatever they want with the company.
Given how much was raised by the company itself (~$200M according to https://www.crunchbase.com/organization/north-8daa) the acquisition seems like Google providing an exit opportunity for the company and its investors, arguably much better for the ecosystem than what Amazon does