Unfortunately, toshime, in order to do that the tournament would have to run for longer than it already does... and it's already spanning nearly 4 months. The top 100ish players ensures that this is the best of the best of Smogon. If you're worried about whether or not you'll get a spot, well, you'll have about 3 weeks from when the managers are chosen until the start of bidding, so there's your time to appeal to them / show your stuff.