That was for an old version of HDCP up to 1080p, right ? Not to mention, capping and transcoding is tedious and will alter the quality. I doubt if anyone still does it as there seem to be better exploits for the determined.
> they just don't publish the methods and devices they are using for that so they don't get patched.
Well not exactly, it's hard to patch this when the keys leak from a very popular device.