Why Stanford Students Walked Out on Sundar Pichai's Commencement Speech

Related last month Stanford grads walk out on Google CEO Sundar Pichai speech (224 points, 271 comments) https://news.ycombinator.com/item?id=48533756

(139 points, 32 comments) https://news.ycombinator.com/item?id=48545260

So much hate from two people who have had phenomenal opportunities handed to them. Why?