Interface-wise, VLC sucks big time...in fact, apart from its important functions in Handbrake, there is little else to be regarded as essential in VLC...the new QuickTime is much more versatile than before, especially with WMV and Perian.
But I have to ask anyway: where is the "thriving" Mac developer community in times like this? Or is it a matter of difficult personalities in such open source projects?
As I am NOT a developer myself, I am unable to help, sorry.
You answered your own question: They are thriving... no time for free work.