This seems like a bit misguided article. Filter is not the issue, it does recognize samples and whatnot. Issue is how YouTube allows the system to be abused. There are people making careers around just claiming videos. As article points out YT says they don't have anything to do with it but they give authors revenue to someone who claimed video without claimer needing to prove he owns the copyright.
I'm sure there's a lot of legal issues and such that directed YT to this path but on the other hand they don't show much interest to the community for making it more benevolent. They are dropping it like it's hot: "We made a system, we don't control it". Doesn't make much sense.