I see that there's a lot of discussion about this new UI option, and some concern over whether it will be useful or not. I for one am rather annoyed with the feature that changes colors when I try to drag & drop from the style indicator in the bottom left. So instead of being able to copy the style of the selected item to other ones without actually filling the clipboard I have a color adjustment function that's imprecise and generally much less useful than going to the stroke & fill dialog.
I think others may feel the same about other UI features. The solution to those would be to A) make the extra UI features opt-in via prefs B) move them to extensions I would vote for B), but it is a rather long-term goal as it necessitates creating a robust extension API for binary extensions.