Threatening is much better than scowling in the grand scheme of things. However, it's uncertain how much faction you get for turning in that quest. It could be the same as killing 1 mob of some faction grinds, which could mean hundreds more before you're not KoS. This old post has a lot of useful faction info for iksars:
https://www.project1999.com/forums/s...ad.php?t=95906
Also if you explained why you want Freeport Militia faction you might find more help.