Terrorist Attack in Perth, Australia?

I'd say if it looks like a terror attack, using explosives and a vehicle, combined with hateful graffiti, it's a terror attack.

Police suspect homegrown Australian terrorism.

Mainly because the target was a mosque full of muslins: http://ift.tt/29uHfiv

I see the imam has graciously referred to the perpetrators as criminals. I'm not seeing a difference between criminality and terrorism here, although the death count appears to be zero, which is an improvement on most terrorist attacks.