At this point, you would seem to be correct. But if they figured to 'wash their hands' of the issue and I can still reproduce it, they didn't do a very good job of pulling the blinders over my eyes. It's false advertisement at this point until they find a fix. Unless I were to disable the internal speakers of the display when the PC is directly connected to it, the input latency is actually lower to me when using the AVR to the TV's HDMI ARC port which disables the internal TV speakers anyways. Even using 8-bit over 10-bit to me, produces lower input latency. I have the AVR set to Pure Direct mode, which bypasses all signal (audio and video) processing. I have used the 2 seperate cable method in the past from the PC and it caused some issues with certain programs and the different display settings between the 2 connections, which is why i have been waiting for HDMI to support 4k above 60hz full chroma RGB through one connection.