Doesn't need to be, the default license for SCP Wiki is Creative Commons BY-SA so you only have to attribute the source and distribute under the same license. I don't see that mentioned so it might technically violate the license unless they negotiated directly with qntm under a different agreement. That's the tricky thing with licenses, you never know if they have so unless the original creator is raising a stink you can't know and legally you have no grounds to object even if they are violating the license.