I don't understand the thinking here. One of the main advantages of Poser Pro is faster rendering? How many "professionals" even use Poser for rendering?

And if they want to appeal to professionals, then the last thing they should do is leave the interface alone. Most professionals are trying to be productive and the Poser interface, while it may be "pretty" and even intuitive from a hobbiest's point of view, was definitely not built with productivity in mind.