The whole idea of minimalism (to me) is to make your user interface's elements easily distinguishable from each other by avoiding unnecessary items that don't to anything and making the user focus only on what's important. Have the icons contain only what they need to be distinguished from one another, no need to overcomplicate it. I really like it, actually. But making it too bland though, defeats the whole purpose!
Instead of suffering because of having too many details and not being able to process everything that you're seeing, you'd be suffering because everything's so similar you can barely tell everything apart! Even Microsoft is realizing that they went a bit too far with their minimalism and decided to step back a bit. A few of Windows 10's apps are having their icons gradually changed.
/ The Cutting Room Floor
Mostly inactive but I'm still alive. Just busy.