It is my understanding that a wrestler cannot intentionally forfeit a match without being disqualified from the rest of the tournament unless they are injured or suffer an illness. Otherwise, it would allow people to dodge other wrestlers in the consolation bracket.
I'm not sure how it would play out in a seeding meeting, but I guess it could be a point of argument if the "winner" of the default placed higher in the tournament. If neither wrestler placed, it seems kind of shaky to me though, especially if they never actually stepped out on the mat together.