Hi, Joel here, I'm founder of a conversational platform here in Brazil (Ubots). In fact launching a bot should not be a technically complex task. On the other hand there are several disciplines where the complexity resides, such as dialog management, dialog state tracking, analytics (decision support), and mainly designing conversations which actually solve people problems in a simple manner, given that the big picture can become increasingly complex over time (if you want some control over it). There are also less supervised approaches where you normally need less / none intervention, but the more unsupervised it is, the less control you have.
