No, it is another Adesk stupid thing... Not only Revit doesn't understand colors but it also imports everything as one object...

So, the only acceptable way - which I also wrote in Revitforum.org - is this:

1. Export from Moi3D to SAT. If we want many materials we split to as many SAT files as the Moi styles.
2. In a Revit project, not family editor, we re-combine the SAT files to one, this is not so difficult, sometimes it is easy to use reference objects that we can later delete.
3. Using Object styles we can assign materials.
4. Then we can make a group using all these SAT files, export to a file and then we can insert this as a group to all our projects...