Lets add some context. Amazon is the author's only job. 5yrs Software, 7yrs Senior, 4yrs Principal, now runs a YouTube self-help. Reading through there are multiple lines that collectively paint a picture of a difficult career.

"I had over 20 managers across my 18 years at Amazon", whilst this might be out of the author's hands, that's a wild manager history.

"..when I finally pushed for bigger scope at Amazon. My manager’s initial reaction wasn’t excitement. It was something closer to “But you’re doing so well where you are.”", most managers generally push their devs to always be doing larger pieces of work, if they aren't, that's weird.

"I was a passenger for the first 10 years of my Amazon career", which doesn't really line up, unless they're referring to their horizontal move to Prime in an effort to find promotive work.

"Not because I suddenly got better at my job, but because I started being intentional about which parts of my job were ... mapped to what the next level required.", which means the author worked out how to correctly market themselves internally.

"You know where you want to be in five years, and you’re actively seeking out the work that will get you there eventually.", again, they worked out how to find promotive work. This seems to be the key take-away they're dancing around.