Looks like it. The homebrew cask download url is using http instead of https, which was one of the problems stated in the forum discussion. There's currently an open PR to fix it https://github.com/caskroom/homebrew-cask/pull/19506/files.
You can try this out https://atom.io/packages/atomic-emacs. It's not yet complete, and I'm still working on it, but I think it's a start. Feature requests are welcome :)