[wenc]

"Opinionated" can make sense because choice increases complexity and potentially decreases interoperability in a team (e.g. the "black" code formatter in Python removes choice from the user, so everyone's code looks the same).

Having a sensible set of defaults can be helpful as well.

That said, sometimes "opinionated" can also just mean "I haven't had the have time to make things configurable yet".

The best of both worlds is "opinionated defaults but configurable". I use an excellent free SQL formatter called ApexSQL Refactor for SQL Server (Windows), and it came with decent defaults, but is also extremely tweakable.