I want top point out that this shows how it is very very tricky to build a good team. Just imagine that one of your co-workers (very smart, the best, but refuses to understand 'principle of least surprise') is refusing to add semicolons and claiming we now need to change mimifier and change a way how we use 3rd party js dynamic loaders. And that can cause quite unpleased dynamic in the team.

This is one of reasons why companies have strict coding-style guides but that is overhead for a very small company (you don't need coding-style you just need developers which know that code needs to be written with understanding it will also used and maintained by other people in your team).