Thats pretty easy to explain! Some people are using multiple devices at once for programming,and thus need the ability to code from multiple devices.

Of course you can do this, however, if you're ever on a shared device or using someone else's computer, it's much faster to login to GitPod and make a quick fix than to setup SSH keys, download an editor (if you're an atom guy like myself), and go through the song and dance. Then have to tear it all down again.

Granted, this isn't a common scenario, but it's happened to me before and GitPod is just so much more convenient. I've tried AWS Cloud9 and wasn't that great of a development experience, the great thing about GitPod is it's fast, easy, portable, and honestly a great developer experience since it's the VSCode editor.