BRIAN SAYS… There are many custom settings, features and functions on all modern cameras, partly due to the wide range of subjects that are now possible to capture. With such diverse subjects the camera needs to be refined to deliver the best result. The fact that images are now more readily scrutinized makes this even more crucial. I’d argue that camera tech has evolved and made many aspects of photography much simpler.
The level of customization is truly amazing, and if you want specific access to a little used feature it’s usually possible