Earlier quoted context omitted.
This article pretty clearly seems like it is not focused on convincing you to switch, it is assuming you already want to get off of it and is explaining how to migrate.
The title says WHY to ditch github. There's maybe 2 sentences where that is discussed. That's really all I was interested in, "Why should I leave github to something with fewer features and less community support". This article did not justify that for me. I'm glad you found it interesting and a good read!
The fact you do not find the why convincing is not really relevant to the main content of this article. Some people read more than titles and a few sentences before dismissing it because it doesn't agree with their already-held views. Sorry you did not find it sufficiently interesting. Migrating off of github is an extremely common problem. If you see no need to migrate off of github, why would you be interested in reading this in the first place, let alone commenting on it? Why do you feel you need to be convinced to switch off of it?