This post should be stickied at the top of every Heroku queueing thread. People keep acting like the "intelligent routing" system is trivial to build and has no overhead which are both patently false. It's clear that they can't go back to the old method with their newer (since 2011) architecture so the solution is for apps to fix their own performance issues.
What I said pretty much implies the opposite, so you may want to retract your endorsement ;-) There are various solutions to this problem but almost all involve some action on Heroku's part.
