But the point was that if the Dominion had a non-aggression pact with Bajor they wouldn't abandon it until they had no other choice.
First off, no, they'd abandon it the moment it was convenient for them to do so, because it was never anything more than a self-serving ploy. Second, again, it doesn't matter when
they would do it, since Sisko was making his case to beings for whom time has no meaning or relevance. All that matters is that
they would do it.
That was my point. Yes, it was a self serving ploy, and the Dominion would abandon it as soon as it stopped serving them.