History is full of rock solid tech giants who have faltered. Amazon isn't invincible and cannot climb forever. In fact, they're under more competition than ever before.
Just because this worked for you doesn't mean it's a good strategy at every company every time.
My view of RSUs was always to see them as a bonus, money that is nice to have but that I don't need. If I can't live my life with the base pay, I don't tke the job.
Sure, AMZN exploded over the last years, no idea why so. I had doubts i would ever go above 1k, not to speak about approaching 3k.