Question Regarding the eminence in the final episode

Just to confirm here, when the eminence all decide to merge and create their final form, the three headed cosmic entity. Is that supposed to directly represent the living tribunal? Like three heads, cosmic entity, pretty close right?

At the same time, where was the living tribunal and one above all in this? Isn't their entire duty to ensure that the multiverse doesn't end up imploding via cosmic entities , mystic powers etc?

Seems a bit odd they didn't intervene in this.