Hemiscorpius Lepturus

So the long-short of this link is about thi said scorpion's sting being basically really, really, dangerous. Causing kidney failures and such, and one of the images on google wasn't pretty. But as much as this specie seems to be something that's huge, it seems not to have any more info about it. Is it deadlier than any scorpion or deathstalker's just as dangerous? 

Also, can H. lepturus happen to be an acquired pet of any of you? Curiosity.