Yoast had a bug that was preventing sites from being indexed. We wrote about this and six months later they announced a fix. We are very happy that Yoast says they have finally fixed the problem making it harder to be seen in Google rankings. We will be putting their update to the test and provide a 3rd party audit of their solution to ensure the problem has been corrected. We can only hope that they will take a more positive approach to bug issues in the future.
We are still waiting on All In One SEO and many others to act and fix this issue.