I'm sorry for being blunt, but if you are mistaking a database server being down (or CDN issues, or faulty backend code, or...) with the frontend code misbehaving then either you are very ignorant to how "computers" work or you are being (very) intellectually disonest. Don't do that.

For the record: yes, as much as it may sound bold or marketing-y, the statement is mostly true. You can have runtime errors if you write a bad regex though. After almost 3 years working full-time with Elm on a daily basis, I have not faced a single runtime error.

And by the way, this is coming from someone who moved away from Elm for the same reasons mentioned throughout this thread, so I'm definitely not an "Elm fan boy", but I do vouch for this programmer's statement.