I completely disagree with the article. There are innumerable small businesses that do not and never will have their own cloud setup, no matter how easy you make it.<p>SaaS is exactly what they need because if they can access the Internet then they can use the service. This is simple to understand and use. Your local plumber, baker and candlestick maker have no idea what the cloud is, let alone open source software.
The author mentions Slack as a winning, for now, SaaS but then talks about deploying open source SaaS projects to your own cloud or servers using containers.<p>But, is there an open source version of Slack? No.