Cait late game is stronger than most ADCs

Twitch has a higher win rate than her at all points of the game.

She needs alot of crit items for that though, which having more than 2 is usually a bad idea unless your team has no tanks, no hard CC or no AP champions to force her to mix her build.

You cannot EW in team fighits on their adc without getting yourself killed.

Her E has around 900 range, slow projectile speed and is blocked by the first thing it hits, basically you'd have to get within 600~range of the enemy adc to hit the net to start the combo with nothing else there to block it, if she misses she just blew her escape in front of the whole enemy team and now shes completely screwed.

Yeah im sure the other team frontline is totally going to let caitlyn do that.