Is there a way to default the editor to a text instead of showing the buttons with all of the types?
I don’t think there is a setting for this. How about prefilling the field with an empty paragraph item on page creation, either via hook or page model?
That’s a good work around for now. Thanks. 
Hopefully an option like this will be available via a blueprint setting at some point.
It might make sense to post a suggestion in the repo if there isn’t one already (didn’t find one myself)-