The power of the Star Tower was fortune telling, but it wasn't as if the only thing that fortune telling could do was look into the future.
There were other things that Wang Fu's group could do with their divination.
Such as finding things that were valuable.
Lin Fan and the Love Sect didn't have time to waste searching for the treasures of the Scarlet Sun Sect. Even if the sect master and ancestor were to tell them where the treasures were, there was no confirming that they would be telling the entire truth.
After all, they would want to hide some treasures for themselves if they were able to escape their predicament.
They just didn't have time to force it out of them.
As such, it was much easier to use the ability that Wang Fu's group possessed.
Wang Fu and his group just ignored all of the members of the Scarlet Sun Sect who looked at them with confused looks.