I did little jump at the Cardassian drink being mentioned in the bar scene. It seems unlikely that Cardassia would have been known enough for a drink to make it's name known, or to even use the name "Cardassian" as a drink moniker whether it came from that planet or not.
1) If memory serves, we don't know when we first encountered Cardassia/interacted with them
2) Alternate timeline - for all we know Starfleet started on a big 'ally search' following their mysterious attack by a massively superior force. They ran into the Cardassians, and forged a friendship.