Thing is Joe Public is a bit thick. They're constantly amazed when the Government say we're invading X/rescuing Y/sending peacekeepers to Z and the very next day 500+ troops get on planes at Brize with all their kit.
I've also seen the frustration of trying to organise an op while we technically can't do anything until an MP stands up in the House. We know we're doing it - we just can't do it.
If we haven't thought of 15+ plans for Iran yet somebody isn't doing their job. Much as it is nice not to appear threatening by drawing up those plans, the real world doesn't work like that.