@TeamYouTube Have you ever considered creating a "Play All" option which allows you to click the newest video for a specific channel, and then proceed to watch each new video in descending order of upload date?
I hate how autoplay takes you to other channels in that situation.
You can always share your thoughts by sending a feedback report directly from YouTube with these steps: https://goo.gl/WdI0BK . While every individual report may not get a direct response, we do review everything and use the details to investigate and fix issues. Thanks.