Originally posted by Hewhoknowsall
It was stated that, as soon as a duel started, both combatants would put up their Force shield and leave it up for the entire fight. The reason why Kas'im didn't have his up is that he foolishly stopped fighting and started ranting about how he was going to pwn Bane.Sure, Kas'im didn't sense if until the last few seconds, but even though that meant that he only had a few seconds to prepare the shield, he still managed to block it. In this fight, assuming that there isn't any PIS or CIS, Kas'im will bring up his shield as soon as the fight starts (again, duelists always put it up as soon as a fight starts) so he will be prepared for any Force attack.
And since when is a massive pillar going to be in the battlefield by chance? Although there is likely to be smaller objects such as bushes and stuff like that, Kas'im could easily Force them back, chop them up or dodge them.
See? Even if I turn out to be wrong, my reasoning isn't "idiotic". You can be wrong and yet still not be "idiotic".
In addition to the above:
In response to your post that Vader's alien form will allow him to match/almost match Kas'im in sabers, the form is only a little alien to Kas'im. It's just a combination of Form 5 and a few other elements thrown in. Now compare that to Kas'im's dual sided lightsaber, which is more or less completely alien to Vader, and Kas'im's knowledge of every sequence and move. Vader doesn't know every sequence and move, which means that they are plenty that Vader would be completely unfamiliar with, unlike Vader's form which Kas'im would only be slightly confused at. Vader would be VERY confused at the dual sided saber and the magnitudes of sequences/moves that Kas'im knows and Vader doesn't.
So Kas'im pwns in sabers
Vader pwns in pure Force
AS YOU SAID, it's "a different story (than Vader pwning, since you were just talking about that before saying "a different story", meaning that it's different from Vader pwning, so it would be close)" in all out.