Carl:
You don't need to keep quiet. I know you're a fan of the course. I just don't think you should repeat others' criticisms of it, as it sounds like you accept them as valid.
You would think that if a young golfer was smart enough to go to college, they would understand that building a course that challenges them, without beating up badly on everyone else, is THE WHOLE POINT of design. But, no.
I do not listen to anyone who declares a course "too short" unless they are shooting under par there consistently. And anyway, I'm not sure it's possible to build a course that is not "short" by the standards of today's elite 20-year-old players. But, when they complain about it, I think what they are really saying is that the course is not long enough to eliminate some of their shorter-hitting adversaries. They would be mortified to lose to a straight-hitting senior player, and Riverfront [like any Open Championship course] is a place where that could happen.
P.S. It was very good for me to watch the video of Kyle Berkshire playing Pacific Dunes [which was once criticized for being too short]. He could reach the 16th hole with a 4-iron, but he still had to hit a really good little chip to make birdie. He could fly the bunkers by ten miles downwind, but other bunkers sometimes came into play, especially if he was off line. Of course, it's probably not representative as he had a pretty windy day to play it [although it was designed with that in mind], but it was anything but a pushover for him.