So you want to go for a WP Gutenberg like editing experience?
I guess technically its archieveable see GitHub - psmb/Psmb.SplitAdd: Allows to insert images and other nodes between paragraphs in one click for a similar plugin…
To the whys and why nots → thats another big discussion. (We would have done this already if there where no downsides…)
see Structured Editing within CKE5 for a related discussion about structured editing.