why HDCP ?

"In conclusion, as the world says goodbye to HDCP, it is probably worth noting that the technology did little or nothing to actually prevent the unauthorized copying of digital audio and video content, so it is logically befitting that its passing will probably have little effect either."

Maybe HDCP was not introduced to protect content but to prevent manufacturers to produce unlicenced hardware ? There must be some big money here, with royalties for every device...