The majority of the development time since V4 I think was spent on improving the web export to produce a full web authoring tool. I read somewhere on TG a while back that this approach was because website making was a bigger deal nowadays than web graphics only. Now that this work is done with only the usual incremental improvements left, I'm guessing there'll be more of what you want in future versions. I understand where you're coming from, but I do like version 5 of what I've seen so far.