Why is it just universaly accepted that maokai outdamages every champion in the game?

Why is he left in this state? There are literally only two top lane champions that can actually impact the game in preseason - cho'gath and maokai - and it's because their base stats are so monstrously high they outdamage every other champion in the entire game, melee or ranged, while building full tank stats.

Why is this acceptable? Why did you gut champions like Galio for supposedly having an oppressive laning phase, but keep Maokai morbidly overbuffed?

Is it to give him a chance at being picked by the pros? Worlds is over, can balance priorities go away from the money magnet "playmaker" champions and towards "fair, skill-based gameplay"?

At the very least force Maokai to opt into mana items or masteries to keep spamming his spells non-stop in lane. As it is he can easily complete his full spell rotation more than eight times without running out - despite not building a single mana regen item or using any runes for mana refunds. The only other champions that can do this are resourceless ones.