I think I speak for many (particular higher degree students and young medical professionals) that OneNote for Windows 10 will never be suitable. There needs to be an option to store data locally and not just in the cloud. For many, both the local copy, with the cloud copy is a great system and works well.
I Truely believe OneNote 2016, has had its name destroyed by OneNote (for 10). I know countless people that used the OneNote from Windows 10 version at uni, and upon graduation, found out they could download the notebooks off 365 enterprises. University normally can access within days / weeks for a grad. People still don't understand the difference and I'm shocked Microsoft hasn't made this very clear. (Seriously, there are tens of thousands online begging for help).
I wish you guys would try to bring the two together and come up with some decent branding. The confusion system, is just moving people to keep (which isn't feature rich, but it is clear you are the product, but your data at least remains)
Marketing Suggestion (I won't even charge you)
OneNote Basic edition: limited functions, free online or app
OneNote Pro edition: User has control, select what they want to add and implement the positive features from basic (comes paid withn 365)
Seriously, as a share holder, a student with 365, a surface user and an educator, which I force students to use MS, deal with this. Please ......