Here's why you shouldn't be jealous: https://www.cvedetails.com/product/22568/Rubyonrails-Ruby-On...
There are still remote code execution and even SQL injection flaws being discovered in Rails.
The dreadful security record of Rails really seems like the elephant in the room.
Compare to Django https://www.cvedetails.com/product/18211/Djangoproject-Djang...