Coming from the review in #1847596-119: Deprecate Taxonomy term reference field in favor of Entity-reference and the following discussions, I think the easiest actionable item for the moment is to not select all bundles by default and make the element required.
So, I agree that this field needs to be required, technically speaking, since a reference field that doesn't reference anything doesn't make sense. I'm still concerned that this is "visibility through validation error" and doesn't entirely solve the original UX problem, but that should be addressed separately.
Filed #1953568: Make the bundle settings for entity reference fields more visible. for the larger usability problem.
Ok, so I guess the point in doing this is so to address "This is the most important part of the form and I skipped right past it" and "It's not the 80% use case to search all elements"? I can get behind that. I agree that it's definitely not a full solution, but I think it's probably good enough for a quick fix to those particular issues.
Committed and pushed to 8.x. Thanks!
Automatically closed -- issue fixed for 2 weeks with no activity.
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