I actually think plumbing does require a bunch of creativity. Trying to add some fixture to an old house with out of spec walls and prior creative solutions can be a real challenge. And you can really appreciate the people who come up with an elegant solution that isn't "tear it out and redo it from scratch".

I'd like to read that blog post.

Yeah that also makes sense. I guess a better comment would have been to highlight the art/work aspects of any process. Like yeah, most jobs (even those that include creativite processes) will just become boring because jobs are standardized usually where you're going from point a to point b doing the same thing again and again. But that doesn't mean there is no art/creativity to the process itself but rather we restrict it intentionally in fixed jobs to standardize and this causes the split between thinking of code as a creative or non-creative pursuit.