[{quoted}](name=bad arcade kitty,realm=EUW,application-id=3ErqAdtq,discussion-id=NFrEItYe,comment-id=00030000,timestamp=2016-12-01T23:19:25.956+0000)
they don't want to decrease his ambush time on the maximal level so nothing will change
They want to decrease his primary damage. The ambush I can understand them leaving alone cause the fact he was revealed and can't sneak past people in laning phase anymore was a huge nerf to him from the assassin update, infact it was safe to say twitch was dead after that and loss of youmuu's. The problem is his W provides more stacks and persist while stood in (no body pays attention to that thing) so its much easier to get 6 stacks which deal true damage, and then E for a massive advantage. Twitch is a snowbally ADC where if he gets ahead he's usually unstoppable or he's irrelevant until full build, and because of his W making so much lane pressure, its much easier to snowball and get ahead early.
Twitch wasn't broken before due to stealth, and his stealth is even worse now, it just last longer until somebody walks near you. The issue is how easy it is to get ahead.