Dealer said its fine to replace only one rear strut. True? on 2007 Hyundai Tiburon

I was told by the Hyundai service dept. that it was ok.But everything I read says you should do both struts at the same time. What is the consensus on this site?

Asked by for the 2007 Hyundai Tiburon
2 answers
What happened to the strut that needs to be replaced? IF defective the other may soon follow! Replace both for the best ride, handling and peace of mind. My opinion!
i would repl as a set