I see your point, but still I want to comment on that.
Editors use the inline images, and that's because editing a document on a page with multiple images is a pain using multiple records "Text & Media".
Editing means to edit content, not to put content on the page. Therefore you change content, which means you have to edit multiple records and copy & paste between them. This is just a pain, really.
Editors don't care about records, ce types and plugins.
So I understand not implementing inline images, but I think the inline images are not the problem but the lack of a document model in TYPO3.
The whole xml ecosystem can do things like that (with DTD, Schema, xsl etc.) but xml is no longer hip enough for some unknown reasons.
I think what TYPO3 needs is a full page editor (maybe FE editing will do that?) with a proper document model (which can be extended by extensions). Something like that exists in the DITA world with Wysiwym editors for example. (So it's possible)
The CKeditor creators think in the same direction. Would be nice if TYPO3 will do the same.