This is also how angular got popular. The tutorial said: Just add this one JS to the page and start making SPAs! Here is a 10 line example with everything in it explained, and it works!
Same with mongodb - their 10 step interactive tutorial website was extremely convincing
Not many people know you can get started the same with react by putting react, mobx and mobx-react on the page https://jsfiddle.net/ugh2xhfg/. Thats because its not advertised. You will still need babel / compilation though. JSX is still a major barrier to entry.
There is no easier way to make a project become popular than to offer an unrealistic-for-production getting started page that will get you rolling by doing almost nothing!