SYLUSNOZAKI I guess they r not contributing to the main project as thats going in a different direction, if you look at the transcoder-redux website you will see that they are rewriting tylers code into C to build their own product, both Ben (Mad Hatter Guy) and St373n are doing their own versions and expanding upon tylers code which is written in applescript.
Also if you look at videomonkey he has taken tylers UI and idea and rewritten in into C as a seperate product. Why not have multiple different video apps eventually they may do different things or some may do thing better than others, there is plenty of choice currently anyway with handbreak, ffmpeg, visualhub although now deceased, videomonkey, filmredux, Popcorn, Road Movie, Roxio Crunch etc, at the end of the day they are all only front ends for ffmpeg or mencoder.