If it looks low to you it probably is. I wish we had more ground clearance on our Cougar. I never really thought too much about it when we were buying. I wish I had. Here's what we were told when we mentioned it to a Keystone rep at an RV show.
"Manufacturers are engineering and building units to be used, for the most part, in RV parks. The data just does not support most new buyers wanting to camp without full hook ups."
We've gone down a few dirt roads and often camp on BLM land or practice other distributed camping options, but we also watch very closely what we're getting into because of our limited rear end clearance and 30' length. If you think you'll have a clearance issue it just means taking more care when entering/exiting driveways or when, God forbid, you might actually get off the pavement and camp