Man you can disagree all you want, provide me with false equivalence examples and tell me it's a cheat. But I'm talking fact when I say that Destiny simply would not have that "fantastic gunplay" people talk about without aim assist. I've got 1300+ hours of Destiny and that's enough time to determine why exactly the gunplay feels so good. It's because you rarely every have to think about perfectly aligning a shot while playing Destiny and you can just shoot with the "feel of it". That is an incredibly rare thing to have on a console shooter and is why Destiny's gunplay has been lauded so much over the past 3 years, it just would not have been possible without the heavy aim assist.
Why should someone who likes to play on PC because of high framerate and resolution but also prefers to use a controller be forced to change their method of input for that "Destiny experience"?
This problem with KB/m player abusing the aim assist is a KB/m player problem and the players who prefer to use a controller do not have to suffer by having it completely removed when it can be fixed otherwise.