Steve,
I've not seen the article so can't comment on the actual saws they've mentioned but the basics for chainsaw use and safety would still apply. Sharp moving metal + clothing/skin still = potential for injury. Having said that if you follow the information contained in a downloadable leaflet from the HSE:
http://www.hse.gov.uk/pubns/indg317.pdf
You just have to consider that your power comes from electricity - even if it is only 12/18/24 volt - and adjust your use accordingly. Basic sensible precautions - clear the area you are to working, don't use without checking over for broken teeth on the saw, all guards in place, no loose/flapping clothing etc. It is debatable about the purchase of safety trousers and a face shield but if you can afford it without buying very expensive equipment, get a helmet and chaps as a minimum - there's lot's of advice out on t'internet:
http://www.chainsawguide.co.uk/safety_equipment_ppe_clothing.htm
http://www.hobuk.co.uk/acatalog/Chainsaw-Safety-Equipment.html
http://www.screwfix.com/cats/A331068/Workwear-PPE/Protective-Clothing/Chainsaw-Protection&cm_mmc=Google-_-Safety%208%20Workwear-_-Chainsaw%20Protection-_-chainsaw%20clothing?P=P&gclid=CMrO44_rppgCFU4g3god3SEnmw&source=aw
Having said all this I am sure others here on the forum would join me in saying that a little knowledge is a dangerous thing - specially with sharp whirly things! If you can at least afford to go on the same basic course as Tracy can recommend that would be to the better.
Anyway that's where I am coming from on this but other may think differently
Greyman