Actually these are three questions. I’ll try to keep it short.
So, it is said that when Mata Nui left Spherus Magna shortly before the Shattering, he was meant to study other worlds before returning and restoring Spherus Magna. He got distracted by this task and stopped paying much (if any) attention to the Matoran Universe.
My questions are:
Did certain beings with close ties to the Great Spirit know that he stopped paying attention? (for example the Barraki, Artakha, Tren Krom or the Makuta (or at least Miserix and Teridax))
Was the increasing involvement of the Brotherhood of Makuta (which originally was only meant to create Rahi) in politics under Miserix’s rule due to the fact that Miserix felt that if the Great Spirit didn’t do his job, someone else had to do it for him?
Assuming Teridax did know that Mata Nui ignored his people - might one of his motivations to seize control of the Matoran Universe have been that he simply didn’t see a reason why the Makuta should serve a Great Spirit who didn’t care? That the Makuta were already doing more things for the Matoran than the Great Spirit and thus deserved to rule?