This was one of the hardest things when I managed people. Most solutions won't be how you would do them, maybe they are 75% 84% of the way there. Constantly judging and tweaking others work when it doesn't make a material difference has a mental and emotional toll on everyone. I learned to go with the flow, if I though that things could be slightly better I would give them a nonbinding code review a couple weeks later. If matters now, we discuss it now, if doesn't we ship.
Bosses shouldn't be bossy except in rare circumstances.
Most of aren't the creative director, so don't enforce your idiosyncratic aesthetic on your team members.
I think the article is simply that if you are pushing for a very small change, one that would make not much difference, and is just a matter of opinion, then don't do it as it will impact negatively the original author.