With breeding fish, or some reptiles, first generation hybrids or first generation from the wild is a good thing and very desirable. The animals are healthier, and may show certain color traits, etc. But why a first generation designer mutt is a good thing, I have absolutely no idea. Dogs, not being fish or reptiles, can produce very unpredicatble results from a purebred mix, as the owners of mixes and mutts everywhere know. Looks like someone coming up with some idiotic statement that sounds good to the ignorant . . . sigh