What's the "streak" that widens running right-to-left in the second picture? It widens as it passes through the colored graphic part of the photo. I hope that isn't a "drag mark" where it rubbed along a branch or such. Do you have the standard graphics or the full body paint? I looked at the Navion webpage and couldn't see where the color of that Swoosh would have white through it. Or is it a reflection? It isn't apparent in the first picture.
The fiberglass roof is a very desirable feature, make no mistake about that. But we're familiar with how tough a FG boat hull is, and a FG RV roof is nothing like that. If something ran along the edge of the roof the FG would have yielded till it got to a cross rib or the like. Then it could have snagged there and started a hole or crack.