I can understand this:
A: If there is enough demand, we will consider the release of an editor in the future. However, this is a time consuming endeavor, and I am not sure we’ll be able to take it on.
Sure, making an editor/SDK for the community is a lot of work --- however, it shouldn't be prohibitively difficult to release the formats/specs so the community can make their own editing tools... I think that would be an acceptable compromise.