[velominati]

I'm a PM at Heroku. The dyno redundancy check has nothing to do with protecting the platform. It is a best practice for production apps to have redundancy at the web server level. This protects your app from downtime should underlying servers fail, or if the web server process were to crash. N+1 redundancy for the win.

Also, it does not cost customers double because the first dyno is free with each app.

[mccolin]

So it actually costs an infinite percentage more to run that second dyno ;-)

But I agree your points on redundancy at the webserver level.

[proexploit]

Well then that's even more than double, it's from free to paid.