Quote: Even if you did everything by hand, meaning recording every camera position/angle by hand, every objects angles etc, what you would end up with is massive scripts that would consume too much resources, simply by sheer size.
as much as a cutscene editor would be nice, that quote there is fairly useless, really. by writing a few different interpolation functions and handling styles of camera control, it'd be really easy to have really good cutscenes set up with minimal code. just remember to re-use a lot of functions, and don't be as lazy as the makers of KOTOR (1 & 2) with their awful use of stock animations. each cutscene could easily be no more than a few dozen lines (at most, which is really small) if you write some simple functions to make the cutscene coding cleaner, and put them in an include file.