Earlier quoted context omitted.
This seems like a super-biased view, and having sat on tons of promo committees for IC, ICTLM, and EngMgr for many years, i'd suggest to you it could not be more wrong. Managers don't get promoted for growing teams. I've watched lots and lots of people who write "grew team from x to y" get feedback on their promo packet that this isn't, by itself, a valuable thing.
I didn't say you get promoted for growing a team, I said you easily get promoted when you manage a lot of people.
But you also started with "lucking out that the product grew" as your view for how that happens too.