Look at my last games, i literally play swain and Graves botlane because i know im gonna scale way faster way before any regular marksmen will.
I've always picked Graves adc but before these changes i knew it wont work against his high range counters like cait and tristana, now i dont give a shit what they pick, unless it's ez draven or kai'sa, they are literally a free game 90% of the game's length because they never scale.
If the changes are so drastic that "an adc main" is ditching the class he played since season 3 that means the nerfs were too much.
But why argue points when you can pull the ol' "le X main spotted" card that somehow wins you the argument.
Ok, mage main