Yeah I cringed when I read this bit. If any managers are reading don't fucking do this. Your intentions may be benign (this person apparently thought they were) but most devs are going to read this as veiled micromanaging and get just as stressed out as the earlier approaches in the article.
Just use scrum as intended, maybe push for more detailed updates if devs are just saying stuff like "still working on x". Or just trust them and don't try to babysit.
Hello Peter whaaaat's happening?