anyone else find kog maw & ardent lulu promblematic?

i know as a whole is a extremely powerful item, but when you give it to of all people who builds his sustain with kit is unreal, it gives him the sort of tankiness you would expect from a fighter. i just had a game we really had to end early because no matter how badly we crushed , his damage stayed more then relevant, even with adc being over powered i can't think of any other adc that can keep their damage up after thoroughly being squashed early, kog maw just feels like a ball of stats.