So basically "move fast and break things", hardly new or controversial in the tech bro sphere ;)
But moving fast and shipping features quickly is a killer trait those small teams can use to be better than the big studios. (who ironically seem to ship slow and still break things)
But the quote from the article is in the context of a 1-person dev team, and how by keeping things really simple so that it is indeed _possible_ to build a feature in the morning and have it live in the afternoon.