Yes, that's true. The idea to separate the model and the view is as old as MVC itself. However, what matters here is how the model is actually implemented and w

Yes, that's true. The idea to separate the model and the view is as old as MVC itself. However, what matters here is how the model is actually implemented and what mechanisms it supports. In CKEditor 5 we took perhaps the longest possible road so a tree structure with Operational Transformation support and couple of other goodies. It costed us a 3 years of work, but it was worth it. We proved the concept and validated the results by implementing the Letters app (https://ckeditor.com/letters/ https://ckeditor.com/letters/) which supports real-time colaborative editing for real (with selective undo, commenting, displaying selections of other users, etc.). We'll now be working on adding more features like e.g. tables support which rise the bar for the data model and the whole architecture even higher, but we're very optimistic seeing the results to far.