Your NY Times article is pretty spot-on. It is absolutely the culture. They hired smart, but cocky fresh grads and infused a win-at-all-costs mantra. And when the company started to grow and hierarchies started forming, they began hiring more experienced people. But alas, smart, but the now-spoiled cocky fresh grads didn’t like having their turf threatened. You end up a Lord of the Flies situation.
UberHR is corrupt. It’s more than condoning or turning a blind eye. They blame the whistleblower.