What annoys me is that Damn Small Linux (abbreviated DSL because its a bad name) got into that list, but not Puppy Linux. This is something that annoys me, as I think that DSL gets far more attention than it deserves.
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My main point is that while DSL may suit your needs, it is not likely to suit an ordinary users. That means that there is effectively no chance in trying to spread open source. Pupp, in many ways, is the universal distribution. It is small enough to fit on all portable media, fast enough to run on most computers, simple enough for most people to use it wihtout having to think about it, and powerful enough to do most things. I think DSL is overratted and Puppy is underratted.