> The author did a really good job of pointing out problem of promo culture, but the solutions suggested are more inspirational than actionable.

Totally agreed.

One thing that killed my motivation in mega-corp(tm) is that your peers are, in reality, your competitors, despite the constant barrage of HR propaganda indoctrinating the opposite. Either directly or indirectly, you are incentivized to take high visibility projects for yourself, take credit for other people's work, and reinforce a narrative about yourself where you are better precisely than those around you.