From the last few student productions I've worked on, I'd argue that the need to light quickly is what really needs to be taught. The number of student DPs I've worked with who don't seem to care one lick for sticking to shooting schedules is truly scary. They just keep on dicking around with their setups, regardless of how much time they're using up.
If I'd hired these guys on paying jobs they literally would have been fired after the first day's shooting. That's how bad and selfish the attitude and approach is. And the scary thing is that it's widespread down here.
Lighting is very important, but the schedule should trump it everytime.