This does not seem like a difficult feature to change/add. I've looked at other cross-platform note organization products that have started to come on to the market (ex Google Keep, etc.) and while I use Evernote exclusively for organizing notes and projects (it is a good product), I have been hesitant to actually buy a subscription simply due to not getting the idea behind some of the organization in the app and the all notes as the default opening screen is one of them.