Reform and revolution are known to be two different terms. When you say reform this means that you are going to make some changes to what is already set. Revolution means that the current laws will completely be removed and will be replaced with something new. With reform, the changes that are happening are going to be gradual. A revolution means that the change is going to be fast.
This can make a lot of people become frustrated. It is possible that a backlash is going to happen after some time. Take note that reform can be changed back to how it used to be while revolution cannot be changed back anymore.