You are trying to apply rational thinking to someone who stabbed someone and then went to declare their religious beliefs before asking to be shot.Honestly had to look up what you are talking about as I hadn't heard about it. Is this it?
Police say the suspect held extreme right-wing views, with reports suggesting his online profile referenced attacks in Christchurch and El Paso.www.smh.com.au
I have no idea what Norways gun ownership laws are or if people in Norway normally walk around armed, but the fact he walked into a mosque armed with a firearm of some description would relay planned intent.
This bloke was armed with a knife, probably something he pulled out of his kitchen drawer. He walked out into the Sydney CBD during afternoon rush hour and only injures one person. Hell, if I wanted to stab a bunch of people, I would have headed for the train station.
If I really wanted to cause a terrorist incident in Sydney, I would have called an Uber saying I was heading for the airport and asking for someone with a big 4WD, killed the driver when they turned up and start flattening pedestrians as they were leaving work.