I find myself wanting to use Boards, but not as they’re implemented because I don’t want to see the board view in the middle of a bullet list.
Maybe this is a long shot, but what if you added a toggle in Settings > Features so that users could choose whether to see the board view in the middle of a bullet list? Something like “Dynamic Board View: Only show board view when zoomed in to the level of the board. Board contents show as bulleted list when displayed as subitem of another list.”