It's advice sourced from his Twitter network for a talk he was asked to give at a school club, so I fail to see where condescension or unnecessary ego plays a p

It's advice sourced from his Twitter network for a talk he was asked to give at a school club, so I fail to see where condescension or unnecessary ego plays a part other than the fact that he is literally a technology professional addressing an audience of CS students. Moreover, the "SJW" (social justice warrior) and Black Lives Matter references are quite sparse, so you can skip the one section and single bullet point, respectively, should you find them not to your liking.