There is a Vast difference between a lane bully, and an Oppressive laner
Unfortunately, Caitlyn falls into both Categories. With even a mediocre support capable of healing her on occasion, she has what has to be one of the easiest laning phases in the game. Without her Traps having a meaningful early game mana cost, she's -simply put- overloaded now.
Her damage scales massively on something that used to JUST be every eight shots, she can now pull off three headshots in a row, and completely destroy her opponent at level 2/3, ending the laning phase completely for the other player, and putting them at a constant and permanent disadvantage.
Is a bully but is not oppressive, you don't feel hopeless when going against her, it often becomes a matter of dodging properly.
Is not a bully but is oppressive, you feel like you have to either harrass him, which makes him go E build and push forever. Or play back and watch him farm stacks, you feel hopeless no matter what.