You are both right! What you really want is a place that doesn't customize Jira at all, and if you find such a place you'll find out that they eventually switched to something else because everyone also hates Jira's default out of the box behaviors.

I don't know, because the part-time customizers are scratching some itch. Maybe they are messing up because they don't know any better.

The full time customizers need to justify their salary.