ReRe's Law of Repetition and Redundancy [3] agrees with you:

  A programmer can accurately estimate the schedule for only the repeated and the redundant. Yet,
  A programmer's job is to automate the repeated and the redundant. Thus,
  A programmer delivering to an estimated or predictable schedule is...
  Not doing their job (or is redundant).

[3] https://news.ycombinator.com/item?id=192