Netflix is a TV company. Their tech is a commodity. An important commodity, for sure, but it's not what makes them valuable. Their critical offering is their reach and programming.
FAAMG (or MAAAM now, I guess?) is a sane grouping of giant companies because their critical offerings and expertise areas are their software and their platforms. I think Google would be totally capable of reimplementing Netflix's streaming services if they needed to, but after years of trying they still haven't been able to fully match Amazon Web Services. That's the difference between Big Company and Big Tech Company. Similarly, it's why Tesla isn't on this list: they're huge and growing and they write software, but their software is just a means to an end, not a valuable platform in itself.