Preg content is also my thing but I can agree with your statement, it will likely take a lot of work for the creator to implement it if they choose to do so. Model changes and scenes so on and so forth.
My point is basically, it would likely depend on how many people would use the feature, it is worth the technical debt it may incur? By that I mean, potentially making it more difficult to add new features without a potential rewrite of the whole system. I don't know, but I could likely see the dev not doing it because of that.