>>33800459I don't know why they included Type:Null in the first place when it could have just been an alt form or story only thing. They could even have just had it be like the UBs and had the name censored the first time it's fought and just referred to it as Type:Null like how the Beasts are referred to by their code name and number before catching them despite those code names having no bearing on their actual name when caught.
I feel like Type:Null might have been an earlier addition to the game than Ultra Beasts, which is why it was implemented so differently and probably wasn't changed to fit in better later in development.