Counter-Jungle Shyvana?

So I just recently played a game of Shyvana Jungle since the update and I noticed something; her recommended Jungle item is the counter jungle item - Poacher's Knife - for some reason.

Now maybe its just me, but wouldn't or even be better for Shyvana? Shyvana has always struck me as one of those power-farm junglers who has the benefit of being someone you don't want to try and invade on because she will ruin you. But she has always struck me as a weak invader because while she hits like a truck she doesn't have the evasion, mobility or strength to deal with an opponent if a laner reacts to her invade (unlike the opposite, where Shyvana can demolish MOST junglers who would dare step foot in her jungle).

I've had the most success (and seen more people do well in streams etc.) playing her as a power-farmer that farms jungle and then leaps out at Level 6/7/mid game as a monster raid boss or splitpusher, rather than someone lurking in the enemy jungle trying to pick monsters and kills like a Lee Sin, Rengar etc.