Well it is all find and dandy if Sakuya hits the ball. Yet being the table is rather in pieces. The return serve would not count and in turn she loses...unless the ball has to bounce once on your side rule was somehow overruled on the count of awesomeness.
They drew new boundaries on the floor and such a few strips back, too. The table was really just a formality after Youmu made all of the balls explode.