Earlier quoted context omitted.
Antitrust law does exactly this. If Amazon owning EA overly concentrates market power/forms a monopoly, it'll be rejected and the deal with fail. Why would you want to put an upper cap on the size of companies? It feels like stifling innovation and productivity, which will be overly negative for everyone.
Amazon owning EA will absolutely stifle innovation, especially given their history in the gaming space.
What am I missing?