100% agree, couldn’t have said it any better. This is an issue I deal with as well too, many times daily as my Fibery Instance expands.
Re: Default values, I think it’s another feature that is unfinished. It is actually something Notion DOES NOT have, although they solve it in Templates which we chatted about recently. But I don’t understand why the Fibery team passed up doing it in multi-select fields:
But you are right it is a real pain not being able to edit fields/relations after you create them.