Well, it's not only about features, but it's about majority.

• How many people use Poser and how many use D|S.
• Will the upgrade to Poser 7 stall because of incompatibility to Transposer/Carrara?
• Will people leave the Carrara line, because the combination Poser/Carrara will have it's deficits?

Daz is aware that a lot of Poser content is made that is not optimized for D|S. I'm sure more people use Poser than D|S. There are a lot of important Phyton scripts that only work with Poser (. So the combination D|S and Carrara will not work for some people.

Carrara is can handle plugins. So analyze dynamic hair and clothing in Poser files and translate them into appropriate new Carrara features. That's the way to go. I know it will take some effort, but Daz wants to add dynamic cloth anyway and at least a fur plugin for Carrara exists already.