It's putting tiny holes through thin cardboard at point blank. Sure it could probably injure your eye or something but it's not on the level of like a real handgun.

Of course, the headline just says it was 'seized'. That could happen for an airsoft gun in Japan for all I know.

A child’s slingshot is more dangerous than this.

Don’t fall into the “scary weapon!” trope. Thankfully I live in America where most people don’t freak out like this and we can have cool hobby projects.

A sling is more dangerous than that thing.

My index finger can also poke a hole in a cardboard box. This is a toy.

Is that a cardboard box?