So it is - thank you for the quick implementation.
Your Playback Speed setting should now be applied when viewing a route as well as editing, so if you want to disable automatic playback when viewing a route your can now do this be setting the Playback Speed to zero.
It looks like the Playback Speed setting is only used in the route planner at present, not on on View Route page. We'll get that changed, as it should be applied on both.
I hope I'm not being dim but I can't disable playback when I view a route. I tried setting playback speed to zero in my settings which had no effect (but changing it to 6% instead of 100% didn't seem to make any difference, either).
Am I missing something or is this a genuine bug?