I don't really get this thread as it seems to ignore the rest of Emissary. Sisko is a dick to Picard, then goes through a transition where the Prophets help him move on from his grief and stop living in the past. Then he meets Picard again and is perfectly fine with him, having learned from his experience.
It seems pretty pointless to hate on Sisko for it throughout the show when it is something he grows out of in the first episode. You make it sound like he curses Picard's name every week!