What are the downsides to this bash script for SSH keys?

This might be a good "Show HN" post.

In the "Download" section of your README, one "downside" is the use of plain-text HTTP.

I'd probably throw in some checks for the return code given by curl.

Also, while I can't speak for the other applications, Ansible has this feature built-in.

Thanks for your input. I didn't realise Ansible had added that in 1.9, that's really awesome.

What are the downsides to this bash script for SSH keys? (github.com)