goducks, I believe you are correct. I went and checked the wall this morning and everything looked fine. I did push firmly from both the inside and outside, and I could tell a very minor amount of flex, which I imagine would be amplified with a strong wind hitting the whole surface.
The wall does seem sturdy enough otherwise considering the materials used. Bummer is that I did not do my research well enough and got this unit because it was small enough for me while having the items my wife wanted that our other trailer didn't have. After I bought it, I found out that Jayco makes the same unit in aluminum and fiberglass, which would of been a lot sturdier like you mentioned.
Thanks all for your comments. Guess I'd better park with the front end towards the wind next time