^^ I don't know this is my first time here since that rule would've been made so
But I think it's canon because it is what I'd consider a mainline fnaf game, and even things like AR are canon so I see no reason why ITP game shouldn't be canon, it also includes pictures and arcade machines that are in FNaF 3, like the same ones which would've been gotten after auctions from Frights, it just makes sense in canon, it all lines up with canon, I see no reason for it not to be considered canon