KMDF Bus Filter Suggestion

Can i make a suggestion for the next version of KMDF. Is it possible to add the ability to be a bus filter (e.g )

I would really like to write a bus filter in KMDF without having to use WDM and some undocumented hacks to get it working correctly. It seems like this would be generally useful for some use-cases e.g capturing a device for redirection over a network