Most of the time. If heroku is having downtime. Then Amazon is having downtime. Then half the internet is down. Let customers know Amazon is down. Sit back and relax.
Uptime isn't an axiom. Most software isn't mission critical and most users won't notice if it's down for 30 minutes once or twice a month, and for everything else we have SLA's to manage professional expectations.
Wow, that's a horrible way of thinking about the user experience. And honestly, I'm not surprised. That's why companies that really care about the user experience will always steal market share from those that don't.
It’s actually small companies that care about user experience that will often make these trade-offs. Less time managing multi-cloud deployments means more time spent building our core product and talking to users.
On the one hand, yeah it sucks. On the other hand, my local ice-cream shop was closed for 30 minutes last week because the owner was doing something and the staff member who was rostered on was out sick. If your online business is at the same level of profit and necessity as an ice-cream shop, it can probably close for 30 minutes once or twice a year.
Very few companies have uptime requirements so critical they can justify this. Small companies with limited ops resources may struggle to make a multi-region setup work more reliably than a single-region one.
Often for small companies with limited resources, the act of trying to make something multi region has the effect of making the overall system less correct and less reliable than just running in a single region.