This question already has an answer here:
I have had review audits several times in the review queues which are mostly fine. They usually included a short (non comprehensive) description of the solution and a link to a howto with the full solution.
You may argue that such answers are not the best way to answer a question, but I guess they helped the user if he was willing to follow and read the link. So I do not think that they should be used as review audits, as it is quite debatable if they are low quality just because they do not quote the link in the answer.
EDIT: You asked for an example, here is another one I found just now: https://stackoverflow.com/review/first-posts/18488868
The post is short, contains a very short abstract of a solution and a link to a howto which looks as if it answers the question in a more comprehensive way. Deleting this answer is a bad idea, as it contributes useful information. Instead of deleting it should be kept until somebody has the time to improve it by extracting the part relevant to the question from the howto and adding it to the answer.
When looking at the page I see that right after me the next user failed. You may think its bad quality, but it is no good idea to use it for review audits as it can be discussed if it is helpful or not.