Yep, the new heat map is great! It would be nicer if there was a n adjustment to intensify the orange colour of the routes so the one less travelled could be seen easier.
Guys, stop sweating over this feature, and use Ben Lowes, fantastic web site at http://veloviewer.com/. You'll find anything that is missing in Strava there. veloviewer.com is simply outstanding ...
You are the man Ben! Look like we can get more bag for our buck by hitting that donate button you your web site then upgrading to premium . ;-)
Just use http://veloviewer.com/ and forget about Strava adding the feature. Veloviewer.com/ is great and offers you lots more.
I have never seen a response from Strava here. But If you log a call with their Support, they will respond directly to you fairly promptly.