Frankly, I'm a little sick of the hysteria about GHB in general; calling it a "date rape drug" is so overblown it's almost funny.
When synthesized by bathtub chemists, it's usually in the sodium or potassium salt form which - what a shock - is extremely salty tasting. In other forms, it has a significant solvent/chemical smell/odor. In no case is it something one could "slip" into a drink in an effective dose and have it go unnoticed... unlike Rohypnol, the first substance I recall being branded as a "date rape drug."
Certainly, GHB can be dangerous - so can alcohol. (And as with any sedative or hypnotic, combining it with alcohol is even more dangerous.) It is also, however, a fairly common, simple molecule; all of you reading this have *gasp* GHB in your bodies, and it's present in small amounts in quite a number of different foods. There are a number of related chemicals that can convert into GHB under the right conditions.
Should a substance that can become GHB been used in a toy for children? Certainly not. Is this "worse" than lead poisoning? It's hard to say - lead toxicity can have serious long term effects on mental and physical development. This stuff may have produced a few severe - even lethal - reactions in children that got a heavy dose, but most of the kids exposed to it are unlikely to have long term effects.