It really doesn't make much sense. The article was actually insightful on this point, or at least this matches my experience:

> it suggests they operate on a consensus-based model that stifles autonomy

The one place where I experienced a lot of rounds of interviews (at least 8 interviews, I think) was at the Wikimedia Foundation. It's an organization that is very explicitly built on consensus-based decision making. There were many great things about working there and at first it was very different from typical corporate culture. In some ways it was stifling, at least for someone who isn't a savvy politician. By the time I left in 2021, they had fully adopted the same kind of leveling system as discussed here, with all of the same political and structural constraints on advancement.