They ain't getting rid of xeppaa and leaf. They are trialing new players and it's just efficient to trial multiple people at once. Also, it's easier to notice real gems among a bunch of wannabies and inexperienced randoms. So it's most likely a strategy from mCe to let new kids stand out in trials rather than having leaf just sh*tting on everybody and then you don't know who is good and who is just happy to be there.