I would argue that concise code could be more error prone then verbose code. When doing things like composition, you eliminate an in between state which allows for easy debugging. What was returned by this function before my next one ran? And sometimes, what type of variable am I even receiving from this function before it is passed into the next. I have found in the past that leaving code as a one:one return variable:function call helps with readability and debugging more than conciseness.