Q change was unnecessary, hes still gated at farming a maximum of 6ap per wave regardless of the change, which was obtainable for farm heavy veigars when they had rank 3 into their old Q.
the E change forces him to play passivley because he is incapable of defending himself to ganks or general 1v1ing in the mid lane, forcing him to towerhug.
and ofc, the ultimate change was a flat nerf.
his low mana pool means he needs to stay above 60%total to full combo someone, which is quite difficult to do, if im effective in my farming attempting to get all 6 AP per wave i will end up with a relative 20% mana pool constantly (assuming my first back was a second dorans ring and codex) otherwise i will oom even with the mana regen from passive because his base mana costs are ridiculously high. and ill be waiting to go back up to ~80mana just to Q.
if i want to get double Q action going on for my farm to try and save a little bit of mana here and there, im now pushing the wave to the enemy turret asking to be ganked, and without a protective skill its suicide. id rather be a karthus or xerath going ham.
where was this "compensation" riot spoke of?