Truth be told, the best RVK players such as Tim, Cain or RiuT weren't on the team which is what most will attribute the defeat to. However, there is no knowing whether the result would have been different had they played. The UsK players Leske and K1ll3rboY_ won with ease in arabia and proved their mettle even in the long oasis game which lasted over 1 hour.
With UsK in the semifinals, we are now waiting for results of Viper vs RoR, AZTK vs LKC and Frog vs VN. The scheduling is not going easy and so it might be a while before we know the other semifinalists.
RTS play-off: http://www.rts-league.org/leagues/aoc/bracket.php
RTS season 25 records: http://www.aoczone.net/viewforum.php?f=122