I didn't downvote, but... "I understand a scrappy startup needing to focus on growth and using the most convenient tools" Well, there's your answer. As a scra

I didn't downvote, but... "I understand a scrappy startup needing to focus on growth and using the most convenient tools" Well, there's your answer. As a scrappy startup, you can't afford to plan migrations you aren't planning to execute. It's that simple. Heroku is not going away (they're owned by salesforce) and they have a good reputation for uptime. The "what if" worst case scenarios have to be weighed against other business concerns. And this company appears to have done a good job of navigating such things.