Also because Netflix is a world class engineering company - they led in cloud, popularised chaos engineering, and are in the process of destroying the cable industry.
Because the term has been coined by Jim Cramer to denote the best performing tech stocks at that point in time. It does not take into account anything other than stock growth.
French uses GAFAM: https://fr.wikipedia.org/wiki/GAFAM (and leaves out Netflix). Funnily enough it used to be GAFA, but people eventually added Microsoft.