Homogenizing is a good thing actually. It makes experience consistent and end result is we should be more productive.
But this is where I think Evernote missed the point on homogenizing. You're supposed to homogenize by use case. In this case, there are 2 types:
1. Mobile class - IOS / Android - More for consumption
2. Desktop class - Windows / MacOS - More for creation & workflow
If the above is understood clearly, then the decisions on what to homogenize, where and how will be consistent for the sake of end user experience and increasing productivity.
My 2 cent