I don't think you understand the current meta of ADCs. The strong adcs right now are kallista, jinx, and sivir(pre-nerf). Any adcs below them have a decent mid game dmg. For caitlyn, shes an adc heavily reliant on autoattacks and items to deal any dmg. This buff makes her a more prominent adc in the meta. Whether shes going to be OP or not will depend on her performance in games 2-3 weeks after this patch releases.
Also, the traps have large ranges for obvious purposes: they give vision in bushes and areas with fog of war to act as a defensive tool. They have an arm time MEANING that cait/nidalee won't be able to throw their trap underneath the enemy and proc it right away so the enemy can easily react to this. These traps do not have much of an impact on the rest of the game as other things like objectives, decision-making, and rotations.
Your post is silly and pointless.