Why is so much importance to written language? Why not practice casual writing like casual speaking. I think many of these expectations put lot of pressure on the people who wants to communicate in writing but that language to be written is not mother tongue or might not even gone to high school.
The expectations are higher when it comes from a major company like Google, especially when it's speaking from a position of authority on a topic like what to do with your life.
With casual speaking, you place emphasis and pauses, naturally... With writing, nobody can read your body language... hear your pauses... notice your _emphasis_... unless you s.p.e.l.l. it out...