Ok this may be explained some where in the bionicle story line but im a little rusty on the little details after my return from the four year dark ages But where were all the Toa that lived on Metru Nui during that war where Lihkan lead like a hundred or more toa to battle , Where were they when the Visorak came to metru nui or when Makuta took over it just seems like a ancient evil and a bunch of spiders infecting the largest city in the universe would signal some of the toa in other places to be like hey maybe we should go help out there . I guess that you could say that they were busy with the damage from Mata nui crashing but at least some had to go and check on Metru nui when all this was going on . Besides the toa Hagah .