Just thought I'd mention that the suggestion as reported here in the readme https://github.com/ember-cli-deploy/ember-cli-deploy-s3-index#without-cloudfront to use redirect rules with a hash in the URL will not work in Safari.
I would therefore recommend not advising it as an option, or at least mention that this approach will not work in Safari. Safari will simply redirect to the home/landing page.