I was called over by Governor for assistance, as it involved 6-7 people, while this situation was actively unfolding and observed the events in real time. Based on what I personally witnessed and reviewed at the scene, the ban was issued appropriately.
You were present with the group and assisted by supplying weapons to civilians and moved them toward the Ministry of the Interior. While you may not have fired a weapon yourself, your actions directly contributed to the breaking of server rules. You assisted in guiding the civilians to the MOI and remained with the group while the unauthorized raid took place.
At no point did you attempt to disengage, report the situation, or distance yourself once it became clear that the civilians were preparing to attack the MOI, with you leading the way.
Remaining on scene and directing movement toward the target constitutes participation, regardless of whether damage logs show you firing a weapon.
Statements made during the incident, including directing the group toward the MOI, show your involvement in an unapproved raid that resulted in MRDM.
For these reasons, your claim of being a passive observer is not supported by what staff observed during the MRDM / RAID.