If you are applying that term to the CoGA's Katusha-analogue, I'm pretty sure Caleb would rant and rave about being kept out of range but it would be from the bottom of that pile of protectors.

No, the OBS. There is a broadly adopted assumption that only technology will trigger the OBS. I suspect that other things will trigger that system. An Army or fleet invading Zion might well exceed the threshold for firing a Rakurai blast at said army.[/quote]
I think we're all getting caught up on the OBS a bit too much. If there's one thing that would derail the storyline, it's a new round of Rakurai strikes on Safehold. It'd be such strong "evidence" in support of Langhorne's religion that nothing the Inner Circle could do would be able to overcome it. Merlin, Charis, and everything they've accomplished would be so tainted by the experience that his entire plan would be destroyed. It'd be absolute, undeniable proof that Charis was in league with Shan-wei. And once that's happened, I can't see how Weber could manage to write his way out of it.
I respectfully disagree with the thought that we could be too caught up with the OBS.
It alone has the ability to hit anywhere on the planet with devastating effect.
Take it out and anything else can be dealt with.
Leave it alone and there is too much possibility that the entire armies and navies could be knocked out.