[cema]

I agree, this is a strange claim. On the other hand (as long as we are with Clojure), something like

  (->> employees parallelize maintain-order)

might be said to be more attractive because it looks more linear. The sequential order of application is thus maintained, and the parentheses which are perceived as additional levels of hierarchy are removed.

Of course, the dot-dot-dot style in Java/C#/etc is doing the same:

  employees.Parallelize().MaintainOrder() 

is also linear, the parentheses are only used to specify parameters.