To kick things of, I'm not disagreeing on the fact that mouse aiming may have issues right now. We have eyes on it and we're actively investigating what can be wrong and how we improve this amongst other input related issues.
However, I was curious about what Silk showed in this video and gave this software (Mouse Movement Recorder) a go to better understand what information it actually gives and I think the testing isn't really showing anything that can prove any issue sadly. It doesn't show a problem at least for mouse input acceleration because it can't really clearly show that clearly in FPS games.
From testing, having both green and red is perfectly normal for FPS games or any shooters and games where the program needs to lock the pointer to screen center. This is actually what the green & red mean here, they indicate that the pointer is being re-positioned on positive or negative axis which you will find in any shooter games most likely.... Read more