The link didn't list a price, but if it wasn't too much this might actually make sense. For a couple of reasons. First, there are many of us with limited internet bandwidth. A DVD worth of software could be worth a fair amount. Second, and don't know if this applies to this package, but various flavors and types of freeware often doesn't play well together. If they have assembled cooperative pieces and/or knocked the rough edges off it could be worth paying for it. That is what most distros of Linux do and many of them charge some nominal fee for a DVD.
Also if the price is low enough you don't really care about an evaluation copy. Your time doing the evaluation is pretty valuable too, and adding a few bucks to that doesn't change the investment much.