Silverstone and the Sents have traditionally been extremists. Shooting neutrals in Tir that are unarmed, arriving alone, and killing them without a blink of the eye, is extreme and in accord with the Sentinel's history.
The CoA is a defensive arrangement among Clanners that had patrolled Tir prior to the arrival of the Sentinels. The CoA allowed free movement to Neutrals, and escorted Omni from the city without bloodshed (if cooperation was found).
Freedom loving Clanners and Neutrals are called upon to support the CoA.
To the Neutrals especially, I do not see how you can avoid making a choice now on this issue without ignoring reality, and the risks you take with your diverse ideals and your personal safety. This in no wise requires you to become a Clanner, but simply to state your support AS Neutrals for the CoA, against the extremism of the Sentinels. For the CoA needs your support--and your support as Neutrals.