Sisko's anger was misplaced, but I don't think Picard deserved to be a target of it. It's not as if he could be held truly responsible for Wolf 359. Besides, Sisko purposefully poisoned a planet and tricked an entire empire into a war. No super race forced him to do these things, and I'm sure many millions of Romulans died in the Dominion War, probably many times that of Wolf 359.
Who is the "devil" person now?
That said, both Picard and Sisko are IMO the best written and acted captains, and my two favourite captains on that basis.