I agree that here are so many factors at play with insulin that generalisations made in this article without detailed context (e.g. how much and what type of exercise the individual does) are worthless.
Starch with plenty of fat and protein may raise insulin levels less than other food combinations. That certainly does not make it insulin-lowering though!!!
Having said that, I'm reluctant to go low carb right now. I've been losing weight easily, albeit at a moderate pace, eating about 200 g of carbs a day, mostly from safe starch (white rice) and sweet potato. I always eat starch with plenty of fat and protein, to lower the GI, and my breakfast is always very low carb (to moderate my insulin response throughout the rest of the day). I am very active and on average consume about 2500 cals a day.
I recognise that everyone's different and should point out that my insulin probably wasn't abnormal when I went primal (even when my BMI had previously been 34, my blood glucose was in the ideal range).
I accept that I'll need to adjust my starch intake gradually downwards in order to continue losing weight, and that I might end up in the low carb zone. I'm not particularly bothered about losing remaining excess weight more quickly than about 2-4 lbs a month, so hopefully that won't be necessary (I love my risottos). I'm a little wary of any extremism, but accept that sometimes it's necessary.
F 5 ft 3. HW: 196 lbs. Primal SW (May 2011): 182 lbs (42% BF)... W June '12: 160 lbs (29% BF) (UK size 12, US size 8). GW: ~24% BF - have ditched the scales til I fit into a pair of UK size 10 bootcut jeans. Currently aligning towards 'The Perfect Health Diet' having swapped some fat for potatoes.