Questions about how ID disagreement works

No, the “plant” ID only disagrees with the taxa between the original ID and “plant”. So if the first ID is a vascular plant, a second disagreeing higher ID of “plant” will be disagreeing with all vascular plant IDs. But if the observation is reidentified as a moss later on, the “plant” ID will not be in disagreement with those later IDs. It is working as intended.