I see what you are saying. I am an engineer-turned-EM and you don't know me, so please take everything I say with a grain of salt:
> Your job is NOT safe.
Nothing will make execs happier than having this line of thought popularized amongst engineers. It will allow them to hire cheaper, and exploit existing engineers more.
I think a better way to put it is:
"A job is not your family, and a job is not your identity. You must rely on yourself"
This line of thinking still means diversifying your options, building an emergency fund, have a fulfilling life outside work, keep doing interviews from time to time, spend some cycles thinking about "what would I do if I where to build my own startup", etc. But it will not put you in the "oh my I need to accept whatever they offer me right now" path.
Especially on FAANG companies, it very easy to "get lost in the technical work" and to "offshore your life's direction to the company", so to speak. If you think this might be happening to you, I recommend involving someone else - a coach, a therapist, a friend, a brother or a priest. Whatever works for you. Someone from outside the company. It might be scary and uncomfortable at first, but taking the driver's seat of your life is worth it.