@youradhere, good question. I have two possible answers.
First, perhaps it is the large pot rather than the WTA versus PPSC. If you played a similar pot size as PPSC, those same two players could likely have gone for win and strong second. Granted, the third player might be more concerned with stopping them for fear of a 18-16 or 17-17 result.
Second, the current WTA system rewards small draws. I would like a different WTA version where a draw is similar to a cancel, everyone gets their points back (except CDers.)
In any case, I mostly play small pot (5

) WTA. Hopefully the smaller pot makes for a more interesting game because there is less at risk and therefore players will play it less safe.
Your mileage may vary.