I think I get more what they're going for now. A technical person can setup a server for themselves and setup services to work for multiple projects. But its complex to get everything right. Trying to reuse a server, setting up routing, domains, and so on can be tedious. I guess they abstract that problem. The wild card domains -> VM is a neat mapping. Then making it easy to use your resources and dispose of VMs.

I guess its an innovation at the resource management layer where you create / manage VMs. It's interesting they choose to give away individual plans. That's very generous. Though I'd feel bad using any of their resources.