Serious, non-sarcastic question: So now you have your own mini Heroku on your own VM somewhere. Is the probability of downtime now smaller than it was on heroku? It seems to be it would be higher...
Yes, but now you can at least plan/schedule downtime according to your particular needs, and unscheduled downtime is at least a little more transparent to you. Sounds like that's what the original article wanted, in any case.
That's a legitimate benefit, although I was suggesting it's offset by the greater chance of something going wrong when you are managing your own servers, especially if you're not an expert sysadmin. I would assume Heroku instances are secured better than a box you're locking down yourself.
