That looks much slower, more complicated, and more expensive.
Is it slower? Maybe, but I inflate mine in two or three inflations of the bag, and that takes me around 60 seconds - it's really not a long time in the big scheme of things - it takes a lot longer to get the tent erected (although that's down to about 5 minutes now). The problem is you can't inflate a high R-value pad without pressure - the reason his inflates so fast is there is no insulation, no down, no pockets, so the air can just go right in. But then so does the cold.
Anyway all I was saying is this isn't a new technique - there's a mattress you can buy today from any MEC/REI that uses this technique.
Per REI's page on the topic, here's what they have to say about R-value: "Insulation is measured according to its capacity to resist (that's the "R") heat flow. The higher a pad's R-value, the better you can expect it to insulate you from cold surfaces. The R-values shown on REI.com product pages are provided by the manufacturers and range from 1.0 (minimally insulated) to 9.5 (well insulated). Thicker pads generally offer higher R-values."
Source: http://www.rei.com/learn/expert-advice/right-sleeping-pad.ht...
Just for further info: I camp a fair bit in Ontario. In September when the days are still hitting the high 20's (80's in Fahrenheit), the ground can still be cold enough that I had to trade up from an R-value 3 sleeping pad to this product. It's much comfier, very light and compact, and inflates really quickly. If you want to get into camping, being comfy at night is so important, I urge you not to skimp on your sleeping pad.