His critique resonates with my expectations from large enterprises, and your perception also resonates from what I expect of large enterprises workers. So I'm guessing he's probably not wrong and your experience was probably an example of him hitting social/political roadblocks. In my arguably limited human sized experience, the vast majority of people at Meta-sized companies prefer the safety and comfort of things going slowly and being discussed at length, and being careful to respect all the hoops that need jumping through. And not having their caged shaken too much. This leads to 5% GPU utilization.