[mickronome]

No, AFAIU it only implies that such an attacker would have to face the multi million dollar cost of renting enough hashing power to guarantee that no-one could steal the 'loot' before the attack has settled. I didn't study the article a lot, but it seems the attack transaction(s) previously crafted can essentially be stolen by any node working with it, and that the costs sunk by the attacker to craft the could then be avoided by THAT attacker.