I guess you are referring to Fremantle.

In practice the only way of benefiting from those closed source bits would be to use them as is or to find / develop an open workaround. Ask anybody (inside or outside Nokia) knowing well those binaries (owned by Nokia or by third parties) and I bet all will agree.

These binaries are not going to be opened and they don't have active maintainers. Only a big emergency would make someone go and work on them. Whoever developed them at the time (at Nokia, for Nokia or at a third party company owning the binary) are surely doing something else now.

I'm describing a situation. There is little to argue about.