I regularly visit this site for the well though out articles and information, but I have to say if the article on how to photograph dance was the first I'd read on LL I doubt I'd have read another. Some poor, ill thought advice and pictures that were correctly exposed and that's as kind as I can be about them. There was some good advice but more that wasn't so hot.
I was particularly surprised to learn that film was completely unsuitable for doing dance/concert photography. I and indeed many others used it for many years and film produced a lot of excellent pictures. Silly sweeping statements like Harald's dismissing film as simply useless, only underscores a lack of understanding of photography. It's easier to change film too, when compared to downloading images to an external hard drive as the author mentioned in his essay. You try doing that in a concert mosh pit! Though for digital I'd simply use a large CF with spares in my pocket.
Burst mode, from my experience usually misses the important part of a dance move, I get a better hit rate from taking one picture at the right moment and not using the camera like a machine gun, hoping to get a good picture. And by taking pictures at the right time rather than using burst mode in the hope of capturing a decent shot, you don't fill cards/use film quite as quickly. A tip for non dancers, often the best time to take shots is on the beats of the music. Particularly on the first and last beats of the bar.
Personally, I prefer to use Aperture priority for this sort of photography as you simply use a lens as open as you can get away with, focus wise, which gives you the fastest shutter speed for the circumstances. No point having 'sharp' out of focus areas. Far simpler than the method described. I've never used SP for performance work, in fact manual is my preferred mode. With experience and now instant feed back from digital, manual is much better a lot of the time than auto exposure AP or SP. And even when the lighting is changing the overall exposure is often fairly constant. Bar white spotlights!
As for using flash, for theatrical performances such as dance, you are only going to annoy both the dancers and the audience, not to mention the lighting engineer and the director, which was quite rightly pointed out, so why then did the author talk about the best time to use flash?
It's a pity that the author didn't take his own advice in his final paragraph as that part is spot on.
To follow on from Jonathan's point about WB, I was recently shooting a dance camp in Sweden for three weeks and every night there was a different show on stage and I quickly discovered that by setting a custom WB of 2800k I got neutral lighting, which is a lot lower than the more usual 3200K. I shoot RAW but it's handy to do less post work and as pointed out you get better histograms And if you are shooting JPEG and RAW, the JPEGS are much better.