Think about the big picture for a few minutes.
In a regular season match, you only have the 10 wrestlers competing one time.
In a tournament, they can compete quite a few times. And the way the consolation brackets are set up, a wrestler that loses in the opening round and then makes it all the way to the 3rd place match would have more matches than a wrestler that never lost (including the final). But if you scored it the same as a regular season match, then the wrestler that won all those consolation matches would/could score more points than the wrestler that took 1st place. Is that really what you want?
So they had to come up with a mechanism to make winning on the championship side more valuable than winning on the consolation side. It's actually a pretty sound system.
People know the scoring system for regular duals because they are 90% of the what fans watch. By comparison, most don't know the intricacies of the tournament scoring because they only see that a few times a year.