The feature team has reviewed this item and decided to decline it at this time.
-WarrenJessica Ann Henry commented
This is causing a lot of confusion for our team. Please reconsider allowing the default OneNote tab to be deleted.
The feature team is still reviewing, there is lots of discussion about this item and I hope to have a decision soon.
Due to prioritization of other work-items this has been moved to the backlog. We will update when it is being actively worked on again.
We are still considering this feature for future releases, and will continue to update the status when it changes.