I have a Chromecast and does not have the issue. I also tested a fire stick for the last couple of days and did not get a single issue. However, all the various Roku sticks I have show the same issue. Look at all the posts in this thread, all of them describe the issue and it points to the Roku stick. I have personally done the uninstall, reset, re-install and clear cache procedure with no luck.
This seems like a lame attempt to divert the issue from Roku to YouTube TV.