It always seemed improbable to me that the Federation hadn't dabbled with cloaking technology before the Pegasus, and we just got a look at some of the covert tech in action courtesy of S31.
Given that Section 31 was there on the Klingon homeworld when the Federation was about to be defeated, could they have used cloaking technology - in a separate conflict - to bring about a catastrophe on Romulus that so horrified the Federation that they were willing to give up cloaking altogether, leaving it to the Romulans? There wouldn't have been an official admission from the Federation about it, of course, but all of the top brass would've been in-the-know as they signed the accord.
If they did something to Romulus that was anything close to what they were planning for the Klingons, it seems likely that the Federation would be willing to backpedal on something like cloaking.
Given that Section 31 was there on the Klingon homeworld when the Federation was about to be defeated, could they have used cloaking technology - in a separate conflict - to bring about a catastrophe on Romulus that so horrified the Federation that they were willing to give up cloaking altogether, leaving it to the Romulans? There wouldn't have been an official admission from the Federation about it, of course, but all of the top brass would've been in-the-know as they signed the accord.
If they did something to Romulus that was anything close to what they were planning for the Klingons, it seems likely that the Federation would be willing to backpedal on something like cloaking.