Ah, found the original thread: [Discrepancy between attacks in actual game / analyzer / my own calculations](
http://warlight.net/Forum/Thread.aspx?ThreadID=2335)
At the moment I'm on a computer which doesn't have Flash installed, so I can't test, but then again, I can't remember Fizzer mentioning changes to the Analyser in any of his change logs... Anyway, if you want to see for yourself if this has been fixed, go play a game with 10% offensive luck (and 75% luck modifier); if a 12 vs 1 attack is listed as a guaranteed victory, the bug is still there. Also, the 2% mentioned is actually (at least) 20%.