The CTTT appoints strata managers when they feel there has been serious mismanagenment of a strata plan (and that means someone in your strata plan has complained and convinced them that this was the case).
The 'dictatorial powers' have been granted becasue your strata scheme has been deemed not to be able to properly manage itself.
What you now have to do is convince the CTTT that you have enough people who are diligent and reliable who can resume control of your building. To do that, you need to look at why a manager was appointed and show that this problem will not happen again
You can't 'require' the CTTT to do anything. All you can do is try to convince them that whatever problem there was no longer existsand is unlikely to return and ask to have control of your building again.