"Experts" do agree that a 5-3 combo is pretty bad, but a true 3 shotter where they won't wait to reach in 2 isn't too bad. In fact, if it takes longer to play ahead of a par 3, it can help pace. At most courses, there are true 3 shotters for all but a handful of players.
Any hard hole that plays slower just ahead of a par 3 is good at reducing the par 3 back up. An easy hole following a par 3 helps get players going, too.
I think it was Yates who wrote that for pace of play, the idea course would have 18 similarly difficult par 4 holes. And, when you think about it, having the hardest hole on the course as the first and each hole getting just a bit easier would be the way to spread out play. If the first hole takes 7 minutes to play, and the second 6.75, the third 6.5, etc., the trailing groups would never catch up!