Right, I felt the same way. I think the accurate title for this post is “Why working for, with, and being an asshole is the wrong way to build software.”
Or to give a much more serious response : this article seems to be very unprofessional, about trying to defend unprofessional behaviour as "normal".
The scrum guide talks about roughly 1hour/week for the scrum team to show stakeholders (such as upper managers and customers) what has been done. Any engineer can at any time reach out to people in the company to demo what has been created, if there's interest.
So I'm not sure what point you're trying to make with starting your own company if you want visibility outside the team.