Why is Yorick removed from free rotation when...
Ryze has the exact same problems. Endless early game harass, large sustain, frustrating to play against, low gameplay, high spamming nature. And yet Yorick falls off come late game while Ryze turns into a hyper carry. Poppy is also removed from free rotation for balance reasons but she also has the weakness of a weak early game and has to work to get to her late game.
Riot really needs to put him on the same list as Poppy and Yorick, its impossible to have him be strong without him being overbearing, he's always either trash or op, and he falls completely into Riot philosophy of problem champions that need a full rework on the level of Sion in order to be in a place that they consider "healthy".