I don't buy being drunk as an excuse for someone not knowing how drunk they are, when so many young people go around a party bragging about how smashed they are. Have been at the point of blacking out (have never fully passed out) and, yes, judgement is severely impaired, but still been able to think to myself "okay I'm fked now, that's enough for me".
So the math: she had two shots of Spirytus according to article. 500ml bottle contains 38 standard drinks.
That's 2.28 standard drinks per average 30ml shot, call it 5 standard drinks if you will. Even if those shots were seconds apart, that will not kill you. It'll get you drunk very quickly, but it won't kill you and you'll know exactly how drunk you are in 10 minutes time. If that was enough to push her over the edge for lethal dose then she simply had way too much to drink beforehand. 5 shots of whiskey would have done the same thing, or 2-3 shots of Chartreuse, or 4 full strength beers. If it can happen with Spirytus, it can happen with anything else. She just had too many drinks period and banning or controlling that drink won't stop this happening.
Yes she probably didn't mean to die from it, so if you wanna use the word accident there I'll accept that she didn't mean to die...but in the same way that I'd accept someone doing double the speed limit and crashing to be an accident. It's the idiot at the end of the bottle, not the drink. You can kill yourself with water if you're stupid enough and plenty do.