As a programmer who often ends up in film land, I'm often dealing with 12k and 20k lamps, which prefer to be faded up slowly; snapping them to full causes big inrush current and has been known to crack lenses.
I think it would be very useful to be able to set a minimum fade time for a channel or address, so that the console can't snap these values even if stored in a 0-second cue. Often many operators will use one console in a short span of time, this would help save lamps and lenses and reduce the risk of blowing breakers.