Interesting article, though is there really much new there? Also it discounts the alternative hypothesis of some bright spark acquiring wolf pups and doing it purposefully because that would take 'weeks'. Weeks, you say?

Surely some enterprising hunter-gatherer had sufficient time on their hands. I can't help but think strutting around with a feared predator at your beck and call would have been the ultimate status symbol, and once you saw it would have to be the must have accessory for the self-respecting hunter. Aficionados would no doubt breed their stock amongst themselves to save the hassle of having to abduct more wolf cubs, which would naturally tend to the more suited specimens (friendliness being one trait as you don't want them eating the kids). Once it was realised what an incredible force multiplier they are in hunting and their utility in defence, any time investment would pay for itself many times over.

I find this no less as unlikely as thinking humans would let wolves help themselves to their excess food. Fascinating subject all round, no matter the reason. I hope they can figure out more.