Hi,
Montiored info option proivdes AP Station stats/Info data.I see this option is in disabled state,enable this option and check the rogue status in Airwave.
Enable poll local controller for rogue option in RAPIDs>Setup page aswell, in master /local setup, it is recommanded to enable this option.
We can add master controller in AMP2 and ignore its local but we need to consider the number of snmp GET polling requests. Master controller will receive request from both AMP1 and AMP2 which may increase load on the controller.
If large number of APs are terminated on master then I would recommand to montior through single server, but you can try add and see the load, if it is high remove it.