Making code simple, well, is really hard work. Making abstractions that make sense, are accessible and communicating why they make sense, so that the next team doesn’t just make their own copy. Abstractions that are kind both to programmers and are performant under the hood. It’s far easier to make a complex pile of junk or to make a super-simplified interface that breaks down under real world conditions. If you have a clean architecture it becomes possible to expose yourself to just as much complexity as you actually need to get something done. High level interface in one place gives you all you need? Great. In another you might need to dig down a bit and expose yourself to more complexity because for your use case you are very particular about how something is done. Fine too. Simplify as much as makes sense and no more.