Yep
An FMB that scales is the key. Relatively simple to get into for a beginner, but with deep functionality for anyone who's capable of/has the desire to use it.
The IL2 editor has qualities that I certainly would want to see again, as does the DCS editor.
One key is a full set of triggers, some of which IL2 is sorely missing, (unit higher than/lower than) ability of non-related flights to follow/join up etc, and AI behavior/logic which functions alongside the editor functionality without constantly breaking.
So a user can write a simple sentence, or combing many sentences and paragraphs into a short story or novel.
A dead simple "anyone can use it with no effort" editor is not the answer...that would hurt the product in the long run.
There has to be a balance.