imo it's a hard decision, probably they have serious selling problems, like Torque, or previously DXStudio, and they try to find a way... I tried it, not bad at all, but I gave it up fast because of the missing documentation. Users also complained about workflow, and limited access to sources, that prevents them from e.g. all depth shader programming (if I remember well). Its C# script package is also a bit messy and lacks features like Esenthel or UDK to look through it easily.