Hmm...
As the dude who actually did the animation you are making an example of, I'd say that running anim is far for completed. The spine is not even animated, and with a few drawing and bone placement tweaks, the cut out issue could be decreased... a lot.
As a programmer, I bet that FFD might be a nightmare thing to do, since you now have to deal with meshes & volume & vertexs. Isn't just doing simple rotating or moving anymore.
The product is actually great. But the missing picture here is that not everyone is capable of doing proper, carefully crafted, animations. 50% of that people, won't even use scaling, 70% wont use tweening, and 90% wont use FFD.
People who can animate, and know techniques n' stuff, will only take advantage of those. And, personally, even tho I'm experienced, under a time constraint, not sure if I'd use FFD, since it would take more time. Way more. Of course, from an artistic point of view, it is totally needed, but this is a tool for games. A few of those are about things in motion, and end user won't even have a clue whether it uses FFD or not, as long as it looks just right.
Wowsies, wrote more than I thought. Cheers :sun: