You could try it, but with Vidiot you really have these elements:
Vidiot Colorizer Out = Luma + Chroma + Sync (color video, CVBS)
Vidiot Luma Processor Out = Luma + Sync (black and white video, VS)
Whereas with S-Video format, you have:
Luma + Sync (black and white video) on one pin
Chroma (the hue/saturation component of color video) on a separate pin
So if you tried to use the Vidiot outs with an S-Video adapter, you’d have luma+sync (from the colorizer) appearing on the chroma pin too. How this ends up being received on the other end just depends on the display or device I’d expect. Some devices may ignore the colorizer’s luma+sync portions and just take the chroma – whereas others may sum the luma and chroma directly, resulting in a mixed version of the colorizer’s luma channel with the luma processor’s luma channel.